{
  "api": {
    "TextTrack": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack",
        "spec_url": "https://html.spec.whatwg.org/multipage/media.html#texttrack",
        "tags": [
          "web-features:text-tracks"
        ],
        "support": {
          "chrome": {
            "version_added": "23"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "31",
            "notes": "Firefox versions before Firefox 50 didn't display captions when playing media without one or more video tracks being played."
          },
          "firefox_android": {
            "version_added": "31"
          },
          "ie": {
            "version_added": "10"
          },
          "oculus": "mirror",
          "opera": {
            "version_added": "≤12.1"
          },
          "opera_android": {
            "version_added": "≤12.1"
          },
          "safari": {
            "version_added": "6"
          },
          "safari_ios": {
            "version_added": "7"
          },
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "activeCues": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/activeCues",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-activecues-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31",
              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty."
            },
            "firefox_android": {
              "version_added": "31"
            },
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "addCue": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/addCue",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-addcue-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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "cuechange_event": {
        "__compat": {
          "description": "`cuechange` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/cuechange_event",
          "spec_url": [
            "https://html.spec.whatwg.org/multipage/media.html#event-media-cuechange",
            "https://html.spec.whatwg.org/multipage/media.html#handler-texttrack-oncuechange"
          ],
          "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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "cues": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/cues",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-cues-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31",
              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty."
            },
            "firefox_android": {
              "version_added": "31"
            },
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "id": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/id",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-id-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "33"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "18"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "8"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "inBandMetadataTrackDispatchType": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/inBandMetadataTrackDispatchType",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-inbandmetadatatrackdispatchtype-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": false,
              "impl_url": "https://crbug.com/41338648"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12",
              "version_removed": "79"
            },
            "firefox": {
              "version_added": "31"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "8"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "kind": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/kind",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-kind-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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "label": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/label",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-label-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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "language": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/language",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-language-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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "mode": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/mode",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-mode-dev",
          "tags": [
            "web-features:text-tracks"
          ],
          "support": {
            "chrome": {
              "version_added": "23"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "31",
              "notes": "Before Firefox 52, using JavaScript to change the mode of a text track that's part of a media element would send one change event to the element's textTracks TextTrackList for each change, even if multiple changes are made in a single pass through the Firefox event loop. Starting in Firefox 52, these changes are reflected by a single event."
            },
            "firefox_android": {
              "version_added": "31"
            },
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "removeCue": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/removeCue",
          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-texttrack-removecue-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": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": {
              "version_added": "7"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "sourceBuffer": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/sourceBuffer",
          "spec_url": "https://w3c.github.io/media-source/#dom-texttrack-sourcebuffer",
          "support": {
            "chrome": {
              "version_added": false
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "8"
            },
            "safari_ios": {
              "version_added": "13",
              "impl_url": "https://webkit.org/b/200147",
              "partial_implementation": true,
              "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}