{
  "api": {
    "HTMLElement": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement",
        "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#htmlelement",
        "tags": [
          "web-features:dom"
        ],
        "support": {
          "chrome": {
            "version_added": "1"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "1"
          },
          "firefox_android": "mirror",
          "ie": {
            "version_added": "5.5"
          },
          "oculus": "mirror",
          "opera": {
            "version_added": "8"
          },
          "opera_android": {
            "version_added": "10.1"
          },
          "safari": {
            "version_added": "1"
          },
          "safari_ios": "mirror",
          "samsunginternet_android": "mirror",
          "webview_android": {
            "version_added": "1"
          },
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "accessKey": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/accessKey",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-accesskey",
          "tags": [
            "web-features:accesskey"
          ],
          "support": {
            "chrome": {
              "version_added": "17"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "5"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "accessKeyLabel": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/accessKeyLabel",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-accesskeylabel",
          "tags": [
            "web-features:accesskey"
          ],
          "support": {
            "chrome": {
              "version_added": false,
              "impl_url": "https://crbug.com/41119923"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "8"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "14"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "anchorElement": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/anchorElement",
          "support": {
            "chrome": {
              "version_added": "preview",
              "flags": [
                {
                  "type": "preference",
                  "name": "#enable-experimental-web-platform-features",
                  "value_to_set": "Enabled"
                }
              ]
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": false,
            "deprecated": false
          }
        }
      },
      "attachInternals": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/attachInternals",
          "spec_url": "https://html.spec.whatwg.org/multipage/custom-elements.html#dom-attachinternals",
          "tags": [
            "web-features:form-associated-custom-elements"
          ],
          "support": {
            "chrome": {
              "version_added": "77"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "93"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "16.4",
              "impl_url": "https://webkit.org/b/197960"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "attributeStyleMap": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/attributeStyleMap",
          "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-elementcssinlinestyle-attributestylemap",
          "tags": [
            "web-features:css-typed-om"
          ],
          "support": {
            "chrome": {
              "version_added": "66"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1278697"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "16.4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "autocapitalize": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/autocapitalize",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-autocapitalize-dev",
          "tags": [
            "web-features:autocapitalize"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "66"
              },
              {
                "version_added": "43",
                "version_removed": "66",
                "partial_implementation": true,
                "notes": "Supported on `HTMLInputElement` and `HTMLTextAreaElement` only."
              }
            ],
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "111"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": [
              {
                "version_added": "10.3"
              },
              {
                "version_added": "≤3",
                "version_removed": "10.3",
                "partial_implementation": true,
                "notes": "Supported on `HTMLFormElement`, `HTMLInputElement`, and `HTMLTextAreaElement` only."
              }
            ],
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "autocorrect": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/autocorrect",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-autocorrect",
          "tags": [
            "web-features:autocorrect"
          ],
          "support": {
            "chrome": {
              "version_added": false
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "136"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "14.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "autofocus": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/autofocus",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-fe-autofocus",
          "tags": [
            "web-features:autofocus"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "79"
              },
              {
                "version_added": "1",
                "version_removed": "79",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "79"
              },
              {
                "version_added": "12",
                "version_removed": "79",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "firefox": [
              {
                "version_added": "110"
              },
              {
                "version_added": "1",
                "version_removed": "110",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10",
              "partial_implementation": true,
              "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
            },
            "oculus": "mirror",
            "opera": [
              {
                "version_added": "66"
              },
              {
                "version_added": "≤12.1",
                "version_removed": "66",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "opera_android": [
              {
                "version_added": "57"
              },
              {
                "version_added": "≤12.1",
                "version_removed": "57",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "safari": [
              {
                "version_added": "15.4"
              },
              {
                "version_added": "4",
                "version_removed": "15.4",
                "partial_implementation": true,
                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
              }
            ],
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "beforetoggle_event": {
        "__compat": {
          "description": "`beforetoggle` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
          "tags": [
            "web-features:popover",
            "web-features:dialog"
          ],
          "support": {
            "chrome": {
              "version_added": "114"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "125"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "17"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "dialog_elements": {
          "__compat": {
            "description": "`beforetoggle` event fires at dialog elements",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
            "tags": [
              "web-features:dialog"
            ],
            "support": {
              "chrome": {
                "version_added": "132"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "133"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "26"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "popover_elements": {
          "__compat": {
            "description": "`beforetoggle` event fires at popover elements",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "114"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "125"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "17"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      },
      "blur": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/blur",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-blur-dev",
          "tags": [
            "web-features:focus-events"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1.5"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "8"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "change_event": {
        "__compat": {
          "description": "`change` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/change_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/indices.html#event-change",
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onchange"
          ],
          "tags": [
            "web-features:change-event"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "9"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "9"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "click": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/click",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-click-dev",
          "tags": [
            "web-features:mouse-events"
          ],
          "support": {
            "chrome": {
              "version_added": "9",
              "notes": "Before Chrome 19, `click()` is only defined on buttons and inputs."
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "3",
              "notes": [
                "Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.",
                "Starting in Firefox 75, the `click()` function works even when the element is not attached to a DOM tree."
              ]
            },
            "firefox_android": {
              "version_added": "4",
              "notes": [
                "Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.",
                "Starting in Firefox for Android 79, the `click()` function works even when the element is not attached to a DOM tree."
              ]
            },
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "10.5"
            },
            "opera_android": {
              "version_added": "11"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "command_event": {
        "__compat": {
          "description": "`command` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/command_event",
          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-command",
          "tags": [
            "web-features:invoker-commands"
          ],
          "support": {
            "chrome": {
              "version_added": "135"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "preview",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.element.invokers.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "preview"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "contentEditable": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/contentEditable",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#contenteditable",
          "tags": [
            "web-features:contenteditable"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "3"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "9"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "plaintext-only": {
          "__compat": {
            "description": "`plaintext-only` as a value",
            "tags": [
              "web-features:contenteditable-plaintextonly"
            ],
            "support": {
              "chrome": {
                "version_added": "51"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "136"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "5.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      },
      "dataset": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dataset",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-dataset-dev",
          "tags": [
            "web-features:dataset"
          ],
          "support": {
            "chrome": {
              "version_added": "7"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "6"
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        }
      },
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dir",
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            "firefox": {
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            "firefox_android": "mirror",
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            "opera_android": {
              "version_added": "≤12.1"
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
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          },
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/drag_event",
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            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-drag"
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          "tags": [
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              "version_added": "12"
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            "firefox": {
              "version_added": "9"
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            "firefox_android": "mirror",
            "ie": {
              "version_added": "9"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
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            "opera_android": {
              "version_added": "12"
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            "safari": {
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            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
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          },
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        }
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragend_event",
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            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragend"
          ],
          "tags": [
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          ],
          "support": {
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              "version_added": "1"
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            "chrome_android": "mirror",
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            "firefox": {
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              "version_added": "9"
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            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
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          },
          "status": {
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            "standard_track": true,
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        }
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragenter_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-ondragenter",
            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragenter"
          ],
          "tags": [
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          "support": {
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              "version_added": "1"
            },
            "chrome_android": "mirror",
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              "version_added": "9"
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            "firefox_android": "mirror",
            "ie": {
              "version_added": "9"
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            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "dragexit_event": {
        "__compat": {
          "description": "`dragexit` event",
          "support": {
            "chrome": {
              "version_added": false
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12",
              "version_removed": "79"
            },
            "firefox": {
              "version_added": "3.5"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": "mirror",
            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": false,
            "deprecated": true
          }
        }
      },
      "draggable": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/draggable",
          "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-draggable",
          "tags": [
            "web-features:draganddrop"
          ],
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
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            "firefox": {
              "version_added": "2"
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            "firefox_android": "mirror",
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              "version_added": "10"
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            "oculus": "mirror",
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            },
            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "5"
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            "safari_ios": {
              "version_added": "4"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
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        "__compat": {
          "description": "`dragleave` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragleave_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-ondragleave",
            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragleave"
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          "tags": [
            "web-features:draganddrop"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
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              "version_added": "12"
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            "firefox": {
              "version_added": "9"
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              "version_added": "9"
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            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
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              "version_added": "3.1"
            },
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          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
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        "__compat": {
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragover_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-ondragover",
            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragover"
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          "tags": [
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          "support": {
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              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "9"
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            "firefox_android": "mirror",
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            "oculus": "mirror",
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              "version_added": "12"
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            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "dragstart_event": {
        "__compat": {
          "description": "`dragstart` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragstart_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-ondragstart",
            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragstart"
          ],
          "tags": [
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          "support": {
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              "version_added": "1"
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            "chrome_android": "mirror",
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            "firefox": {
              "version_added": "9"
            },
            "firefox_android": "mirror",
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              "version_added": "9"
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            "oculus": "mirror",
            "opera": {
              "version_added": "12"
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            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
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          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "drop_event": {
        "__compat": {
          "description": "`drop` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/drop_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-ondrop",
            "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-drop"
          ],
          "tags": [
            "web-features:draganddrop"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
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              "version_added": "12"
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            "firefox": {
              "version_added": "9"
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            "firefox_android": "mirror",
            "ie": {
              "version_added": "9"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
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            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "editContext": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/editContext",
          "spec_url": "https://w3c.github.io/edit-context/#dom-htmlelement-editcontext",
          "tags": [
            "web-features:edit-context"
          ],
          "support": {
            "chrome": {
              "version_added": "121"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1904161"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false,
              "impl_url": "https://webkit.org/b/269922"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "enterKeyHint": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/enterKeyHint",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-enterkeyhint",
          "tags": [
            "web-features:enterkeyhint"
          ],
          "support": {
            "chrome": {
              "version_added": "77"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "94"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "13.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "error_event": {
        "__compat": {
          "description": "`error` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/error_event",
          "spec_url": [
            "https://w3c.github.io/uievents/#event-type-error",
            "https://html.spec.whatwg.org/multipage/indices.html#event-error"
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          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "9"
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            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
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            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "1"
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            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "focus": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/focus",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-focus-dev",
          "tags": [
            "web-features:focus-events"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
            "edge": {
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            "firefox": {
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            "firefox_android": "mirror",
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            },
            "oculus": "mirror",
            "opera": {
              "version_added": "8"
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            "opera_android": {
              "version_added": "10.1"
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
              "version_added": "1",
              "notes": "If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling `focus()` on an `<input>` element has no effect (for example, the element does not match the `:focus` selector)."
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "options_focusVisible_parameter": {
          "__compat": {
            "description": "`options.focusVisible` parameter",
            "tags": [
              "web-features:focus-events"
            ],
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "104"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
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              "opera_android": "mirror",
              "safari": {
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              "webview_android": "mirror",
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            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "options_preventScroll_parameter": {
          "__compat": {
            "description": "`options.preventScroll` parameter",
            "tags": [
              "web-features:focus-events"
            ],
            "support": {
              "chrome": {
                "version_added": "64"
              },
              "chrome_android": {
                "version_added": false,
                "impl_url": "https://crbug.com/41453122"
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              "edge": {
                "version_added": "17"
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              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": false,
                "impl_url": "https://bugzil.la/1544660"
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "15"
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              "safari_ios": {
                "version_added": "15.5"
              },
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          }
        }
      },
      "hidden": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/hidden",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-hidden",
          "tags": [
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          "support": {
            "chrome": {
              "version_added": "6"
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            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
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            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
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            "oculus": "mirror",
            "opera": {
              "version_added": "11.6"
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            "opera_android": {
              "version_added": "12"
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            "safari": {
              "version_added": "5.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "3"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "hidePopover": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/hidePopover",
          "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#dom-hidepopover",
          "tags": [
            "web-features:popover"
          ],
          "support": {
            "chrome": {
              "version_added": "114"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "125"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "17"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "inert": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/inert",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-inert",
          "tags": [
            "web-features:inert"
          ],
          "support": {
            "chrome": {
              "version_added": "102"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "112"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
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            "safari": {
              "version_added": "15.5"
            },
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            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        },
        "ignores_find_in_page": {
          "__compat": {
            "description": "Element is ignored for the purposes of find-in-page.",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/inert",
            "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-inert",
            "tags": [
              "web-features:inert"
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            "support": {
              "chrome": {
                "version_added": "124"
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              "chrome_android": "mirror",
              "edge": "mirror",
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                "version_added": "120"
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              "oculus": "mirror",
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              "opera_android": "mirror",
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                "version_added": false,
                "impl_url": "https://webkit.org/b/269909"
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              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
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            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          }
        }
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      "innerText": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/innerText",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#the-innertext-idl-attribute",
          "tags": [
            "web-features:dom"
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          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
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            "firefox": {
              "version_added": "45"
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              "version_added": "9.6"
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            "opera_android": {
              "version_added": "10.1"
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            "safari": {
              "version_added": "1"
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            "safari_ios": "mirror",
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            "webview_android": {
              "version_added": "1"
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            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        },
        "enforces_trusted_types": {
          "__compat": {
            "description": "Requires `TrustedScript` instance in `HTMLScriptElement` when trusted types are enforced.",
            "spec_url": "https://w3c.github.io/trusted-types/dist/spec/#dom-htmlscriptelement-innertext",
            "tags": [
              "web-features:trusted-types"
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            "support": {
              "chrome": {
                "version_added": "83"
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              "chrome_android": "mirror",
              "edge": {
                "version_added": false
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              "firefox": {
                "version_added": "135",
                "flags": [
                  {
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                    "name": "dom.security.trusted_types.enabled",
                    "value_to_set": "true"
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              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "26"
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              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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        }
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      "inputMode": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/inputMode",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-inputmode",
          "tags": [
            "web-features:inputmode"
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          "support": {
            "chrome": {
              "version_added": "66"
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            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "95"
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            "firefox_android": {
              "version_added": "79"
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            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "12.1"
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            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
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      "isContentEditable": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/isContentEditable",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-iscontenteditable-dev",
          "tags": [
            "web-features:contenteditable"
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          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
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            "firefox": {
              "version_added": "4"
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            "firefox_android": "mirror",
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              "version_added": "5.5"
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            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
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            "opera_android": {
              "version_added": "≤12.1"
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
              "version_added": "1"
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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      "lang": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/lang",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-lang",
          "tags": [
            "web-features:lang-attr"
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          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
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            "firefox": {
              "version_added": "1"
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            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
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            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
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            "opera_android": {
              "version_added": "≤12.1"
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
              "version_added": "1"
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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      "load_event": {
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          "description": "`load` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/load_event",
          "spec_url": [
            "https://w3c.github.io/uievents/#event-type-load",
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onload",
            "https://html.spec.whatwg.org/multipage/indices.html#event-load"
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          "tags": [
            "web-features:dom"
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          "support": {
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              "version_added": "1"
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            "chrome_android": "mirror",
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              "version_added": "1.0"
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            "edge": {
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            "firefox": {
              "version_added": "1"
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            "firefox_android": "mirror",
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              "version_added": "5.5"
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            "oculus": "mirror",
            "opera": {
              "version_added": "8"
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            "opera_android": {
              "version_added": "10.1"
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            "safari": {
              "version_added": "1.3"
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            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
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      "nonce": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/nonce",
          "spec_url": "https://html.spec.whatwg.org/multipage/urls-and-fetching.html#dom-noncedelement-nonce",
          "tags": [
            "web-features:csp"
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          "support": {
            "chrome": {
              "version_added": "61"
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            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "75"
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            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": [
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                "version_added": "15.4"
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              {
                "version_added": "10",
                "version_removed": "15.4",
                "partial_implementation": true,
                "notes": "The property is defined only for its useful elements: `<link>`, `<script>`, and `<style>`; it is undefined for all other elements."
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            ],
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "offsetHeight": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetHeight",
          "spec_url": "https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsetheight",
          "tags": [
            "web-features:dom"
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          "support": {
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              "version_added": "1"
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            "chrome_android": "mirror",
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            "firefox": {
              "version_added": "1"
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            "firefox_android": "mirror",
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            "opera_android": {
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              "version_added": "3"
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            "safari_ios": {
              "version_added": "1"
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            "samsunginternet_android": "mirror",
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "offsetLeft": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetLeft",
          "spec_url": "https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsetleft",
          "tags": [
            "web-features:dom"
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          "support": {
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            "chrome_android": "mirror",
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              "version_added": "3"
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          "status": {
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            "standard_track": true,
            "deprecated": false
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        }
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      "offsetParent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetParent",
          "spec_url": "https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsetparent",
          "tags": [
            "web-features:dom"
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          "support": {
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              "version_added": "1"
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            "chrome_android": "mirror",
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            "firefox": {
              "version_added": "1"
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            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
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            "oculus": "mirror",
            "opera": {
              "version_added": "8"
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            "opera_android": {
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
              "version_added": "1"
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "offsetTop": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetTop",
          "spec_url": "https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsettop",
          "tags": [
            "web-features:dom"
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          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
            "edge": {
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            "firefox": {
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            "firefox_android": "mirror",
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            "opera": {
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            "opera_android": {
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            "safari": {
              "version_added": "3"
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            "safari_ios": {
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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      "offsetWidth": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetWidth",
          "spec_url": "https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsetwidth",
          "tags": [
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          "support": {
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            "chrome_android": "mirror",
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            "firefox": {
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            "firefox_android": "mirror",
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            "opera": {
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            "opera_android": {
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            "safari_ios": {
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            "samsunginternet_android": "mirror",
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          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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      },
      "outerText": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/outerText",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-outertext",
          "tags": [
            "web-features:dom"
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          "support": {
            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
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            "firefox": {
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            "firefox_android": "mirror",
            "ie": {
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            "oculus": "mirror",
            "opera": {
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            "opera_android": {
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            "safari_ios": "mirror",
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            "webview_android": {
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          "status": {
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            "standard_track": true,
            "deprecated": false
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      },
      "popover": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/popover",
          "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#dom-popover",
          "tags": [
            "web-features:popover"
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          "support": {
            "chrome": {
              "version_added": "114"
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            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "125"
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            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
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            "safari_ios": [
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                "version_added": "18.3"
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              {
                "version_added": "17",
                "version_removed": "18.3",
                "partial_implementation": true,
                "notes": "On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see [bug 267688](https://webkit.org/b/267688)."
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            ],
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        },
        "hint": {
          "__compat": {
            "description": "`hint` value",
            "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#attr-popover-hint",
            "tags": [
              "web-features:popover-hint"
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            "support": {
              "chrome": {
                "version_added": "133"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": false,
                "impl_url": "https://bugzil.la/1867743"
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              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
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              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": true,
              "standard_track": true,
              "deprecated": false
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          }
        }
      },
      "showPopover": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/showPopover",
          "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#dom-showpopover",
          "tags": [
            "web-features:popover"
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          "support": {
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              "version_added": "114"
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            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
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            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
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            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
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        },
        "options_source_parameter": {
          "__compat": {
            "description": "`options.source` parameter",
            "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-showpopoveroptions-source",
            "tags": [
              "web-features:popover"
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            "support": {
              "chrome": {
                "version_added": "133",
                "partial_implementation": true,
                "notes": "When using this option, the focus order doesn't change, so the popover does not become the next focus element. See [bug 383343310](https://crbug.com/383343310)."
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "141"
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              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "preview",
                "partial_implementation": true,
                "notes": "When using this option, the focus order doesn't change, so the popover does not become the next focus element. See [bug 286575](https://webkit.org/b/286575)."
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          },
          "implicit_anchor_reference": {
            "__compat": {
              "description": "Implicit anchor reference via `source`",
              "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#:~:text=Set%20element's%20implicit%20anchor%20element%20to%20invoker.",
              "tags": [
                "web-features:anchor-positioning"
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              "support": {
                "chrome": {
                  "version_added": "133"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": {
                  "version_added": "141"
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                "firefox_android": "mirror",
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "webview_ios": "mirror"
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
        }
      },
      "spellcheck": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/spellcheck",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-spellcheck-dev",
          "tags": [
            "web-features:spellcheck"
          ],
          "support": {
            "chrome": {
              "version_added": "9"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "2"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "5.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "3"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "style": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/style",
          "spec_url": "https://drafts.csswg.org/cssom/#dom-elementcssinlinestyle-style",
          "tags": [
            "web-features:css-object-model"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "8"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "tabIndex": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/tabIndex",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex",
          "tags": [
            "web-features:tabindex"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "18"
              },
              {
                "version_added": "12",
                "version_removed": "18",
                "partial_implementation": true,
                "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See [issue 4365703](https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/) for details."
              }
            ],
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5",
              "partial_implementation": true,
              "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See [issue 4365703](https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/) for details."
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "title": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/title",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-title",
          "tags": [
            "web-features:title-attr"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "toggle_event": {
        "__compat": {
          "description": "`toggle` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
          "tags": [
            "web-features:popover",
            "web-features:dialog",
            "web-features:details"
          ],
          "support": {
            "chrome": {
              "version_added": "36"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "49"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "details_elements": {
          "__compat": {
            "description": "`toggle` event fires at details elements",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
            "tags": [
              "web-features:details"
            ],
            "support": {
              "chrome": {
                "version_added": "36"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "49"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "dialog_elements": {
          "__compat": {
            "description": "`toggle` event fires at dialog elements",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
            "tags": [
              "web-features:dialog"
            ],
            "support": {
              "chrome": {
                "version_added": "132"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "133"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "26"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "popover_elements": {
          "__compat": {
            "description": "`toggle` event fires at popover elements",
            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "114"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "125"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "17"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      },
      "togglePopover": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/togglePopover",
          "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#dom-togglepopover",
          "tags": [
            "web-features:popover"
          ],
          "support": {
            "chrome": {
              "version_added": "114"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "125"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "17"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "force_parameter": {
          "__compat": {
            "description": "`force` parameter",
            "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-togglepopoveroptions-force",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "116"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "141"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "17"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "options_force_parameter": {
          "__compat": {
            "description": "`options.force` parameter",
            "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-togglepopoveroptions-force",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "130"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "141"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "18.4"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "options_source_parameter": {
          "__compat": {
            "description": "`options.source` parameter",
            "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-showpopoveroptions-source",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "133",
                "partial_implementation": true,
                "notes": "When using this option, the focus order doesn't change, so the popover does not become the next focus element. See [bug 383343310](https://crbug.com/383343310)."
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "141"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "preview",
                "partial_implementation": true,
                "notes": "When using this option, the focus order doesn't change, so the popover does not become the next focus element. See [bug 286575](https://webkit.org/b/286575)."
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          },
          "implicit_anchor_reference": {
            "__compat": {
              "description": "Implicit anchor reference via `source`",
              "spec_url": "https://html.spec.whatwg.org/multipage/popover.html#:~:text=Set%20element's%20implicit%20anchor%20element%20to%20invoker.",
              "tags": [
                "web-features:anchor-positioning"
              ],
              "support": {
                "chrome": {
                  "version_added": "133"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": {
                  "version_added": "141"
                },
                "firefox_android": "mirror",
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "webview_ios": "mirror"
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
        },
        "returns_boolean": {
          "__compat": {
            "description": "Returns `true` or `false`",
            "tags": [
              "web-features:popover"
            ],
            "support": {
              "chrome": {
                "version_added": "116"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "125"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "17"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      },
      "translate": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/translate",
          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-translate",
          "tags": [
            "web-features:translate"
          ],
          "support": {
            "chrome": {
              "version_added": "19"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "111"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "virtualKeyboardPolicy": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/virtualKeyboardPolicy",
          "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-elementcontenteditable-virtualkeyboardpolicy",
          "tags": [
            "web-features:virtual-keyboard"
          ],
          "support": {
            "chrome": {
              "version_added": "94"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1730568"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false,
              "impl_url": "https://webkit.org/b/230225"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "writingSuggestions": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/writingSuggestions",
          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-writingsuggestions",
          "tags": [
            "web-features:writingsuggestions"
          ],
          "support": {
            "chrome": {
              "version_added": "124"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1871621"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "18"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}