{
  "html": {
    "elements": {
      "optgroup": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/optgroup",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#the-optgroup-element",
          "tags": [
            "web-features:select"
          ],
          "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": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "≤4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "disabled": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Attributes/disabled",
            "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#attr-optgroup-disabled",
            "tags": [
              "web-features:select"
            ],
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": "8"
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "7",
                "notes": "Before Safari 7, the attribute can be set, but has no effect."
              },
              "safari_ios": {
                "version_added": false,
                "impl_url": "https://webkit.org/b/227042",
                "notes": "The attribute can be set, but has no effect."
              },
              "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/form-elements.html#attr-optgroup-label",
            "tags": [
              "web-features:select"
            ],
            "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": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "≤4"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}