{
  "api": {
    "HTMLTrackElement": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement",
        "spec_url": "https://html.spec.whatwg.org/multipage/media.html#htmltrackelement",
        "tags": [
          "web-features:text-tracks"
        ],
        "support": {
          "chrome": {
            "version_added": "23"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "31",
            "notes": "Before Firefox 50, text tracks would only load if the <code>&lt;track&gt;</code> element is in a document."
          },
          "firefox_android": "mirror",
          "ie": {
            "version_added": "10"
          },
          "oculus": "mirror",
          "opera": {
            "version_added": "12"
          },
          "opera_android": {
            "version_added": "12"
          },
          "safari": {
            "version_added": "6"
          },
          "safari_ios": "mirror",
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "cuechange_event": {
        "__compat": {
          "description": "<code>cuechange</code> event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/cuechange_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/media.html#event-media-cuechange",
            "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oncuechange"
          ],
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "32"
              },
              {
                "version_added": "23",
                "partial_implementation": true,
                "notes": "The <code>oncuechange</code> event handler property is not supported."
              }
            ],
            "chrome_android": "mirror",
            "edge": {
              "version_added": "14"
            },
            "firefox": {
              "version_added": "68"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": [
              {
                "version_added": "19"
              },
              {
                "version_added": "15",
                "partial_implementation": true,
                "notes": "The <code>oncuechange</code> event handler property is not supported."
              },
              {
                "version_added": "12",
                "version_removed": "15"
              }
            ],
            "opera_android": [
              {
                "version_added": "19"
              },
              {
                "version_added": "14",
                "partial_implementation": true,
                "notes": "The <code>oncuechange</code> event handler property is not supported."
              },
              {
                "version_added": "12",
                "version_removed": "14"
              }
            ],
            "safari": [
              {
                "version_added": "10"
              },
              {
                "version_added": "6",
                "partial_implementation": true,
                "notes": "The <code>oncuechange</code> event handler property is not supported."
              }
            ],
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": [
              {
                "version_added": "4.4.3"
              },
              {
                "version_added": "≤37",
                "partial_implementation": true,
                "notes": "The <code>oncuechange</code> event handler property is not supported."
              }
            ],
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "default": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-default",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "kind": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-kind",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "label": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-label",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "readyState": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-readystate-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "src": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/src",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-src",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31",
              "notes": "Before Firefox 50, setting the <code>src</code> property did not work properly."
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "srclang": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-srclang",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "track": {
        "__compat": {
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-track-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "12"
            },
            "opera_android": {
              "version_added": "12"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}