{
    "ref-for-dom-document-exitfullscreen①": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Document.json",
            "name": "exitFullscreen",
            "slug": "API/Document/exitFullscreen",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Document/exitFullscreen",
            "summary": "The Document method exitFullscreen() requests that the element on this document which is currently being presented in fullscreen mode be taken out of fullscreen mode, restoring the previous state of the screen. This usually reverses the effects of a previous call to Element.requestFullscreen().",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "9",
                        "alternative_name": "mozCancelFullScreen"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "11",
                    "alternative_name": "msExitFullscreen"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "5.1",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "prefix": "webkit"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "prefix": "webkit"
                    }
                ]
            },
            "title": "Document.exitFullscreen()"
        }
    ],
    "handler-document-onfullscreenchange": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "altname": [
                "webkit"
            ],
            "filename": "api/Document.json",
            "name": "fullscreenchange_event",
            "slug": "API/Document/fullscreenchange_event",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Document/fullscreenchange_event",
            "summary": "The fullscreenchange event is fired immediately after the browser switches into or out of fullscreen mode.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "10",
                        "alternative_name": "mozfullscreenchange"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "11",
                    "alternative_name": "MSFullscreenChange"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenchange"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "alternative_name": "webkitfullscreenchange"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "5.1",
                    "alternative_name": "webkitfullscreenchange"
                },
                "safari_ios": {
                    "version_added": "12",
                    "alternative_name": "webkitfullscreenchange",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ]
            },
            "title": "Document: fullscreenchange event"
        },
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Element.json",
            "name": "fullscreenchange_event",
            "slug": "API/Element/fullscreenchange_event",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Element/fullscreenchange_event",
            "summary": "The fullscreenchange event is fired immediately after an Element switches into or out of fullscreen mode.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "10",
                        "alternative_name": "mozfullscreenchange"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": false
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenchange"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "alternative_name": "webkitfullscreenchange"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "5.1",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "alternative_name": "webkitfullscreenchange"
                    }
                ]
            },
            "title": "Element: fullscreenchange event"
        }
    ],
    "ref-for-dom-document-fullscreenelement①": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Document.json",
            "name": "fullscreenElement",
            "slug": "API/Document/fullscreenElement",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Document/fullscreenElement",
            "summary": "The Document.fullscreenElement read-only property returns the Element that is currently being presented in fullscreen mode in this document, or null if fullscreen mode is not currently in use.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "20",
                        "prefix": "webkit"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "9",
                        "alternative_name": "mozFullScreenElement"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "11",
                    "alternative_name": "msFullscreenElement"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "6",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "prefix": "webkit"
                    }
                ]
            },
            "title": "Document.fullscreenElement"
        }
    ],
    "ref-for-dom-document-fullscreenenabled①": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Document.json",
            "name": "fullscreenEnabled",
            "slug": "API/Document/fullscreenEnabled",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Document/fullscreenEnabled",
            "summary": "The read-only fullscreenEnabled property on the Document interface indicates whether or not fullscreen mode is available.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "20",
                        "prefix": "webkit"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": "12"
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "10",
                        "alternative_name": "mozFullScreenEnabled"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "11",
                    "alternative_name": "msFullscreenEnabled"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "6",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "prefix": "webkit"
                    }
                ]
            },
            "title": "Document.fullscreenEnabled"
        }
    ],
    "handler-document-onfullscreenerror": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "altname": [
                "webkit"
            ],
            "filename": "api/Document.json",
            "name": "fullscreenerror_event",
            "slug": "API/Document/fullscreenerror_event",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Document/fullscreenerror_event",
            "summary": "The fullscreenerror event is fired when the browser cannot switch to fullscreen mode.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "18",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "10",
                        "alternative_name": "mozfullscreenerror"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "11",
                    "alternative_name": "MSFullscreenError"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenerror"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "alternative_name": "webkitfullscreenerror"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "6",
                    "alternative_name": "webkitfullscreenerror"
                },
                "safari_ios": {
                    "version_added": "12",
                    "alternative_name": "webkitfullscreenerror",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ]
            },
            "title": "Document: fullscreenerror event"
        },
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Element.json",
            "name": "fullscreenerror_event",
            "slug": "API/Element/fullscreenerror_event",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Element/fullscreenerror_event",
            "summary": "The fullscreenerror event is fired when the browser cannot switch to fullscreen mode.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "18",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "10",
                        "alternative_name": "mozfullscreenerror"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": false
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "alternative_name": "webkitfullscreenerror"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "alternative_name": "webkitfullscreenerror"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "6",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "alternative_name": "webkitfullscreenerror"
                    }
                ]
            },
            "title": "Element: fullscreenerror event"
        }
    ],
    "ref-for-dom-element-requestfullscreen①": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "prefixed": [
                "webkit"
            ],
            "filename": "api/Element.json",
            "name": "requestFullscreen",
            "slug": "API/Element/requestFullscreen",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullscreen",
            "summary": "The Element.requestFullscreen() method issues an asynchronous request to make the element be displayed in fullscreen mode.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "9",
                        "alternative_name": "mozRequestFullScreen",
                        "notes": "Before Firefox 44, Firefox incorrectly allowed elements inside a <code>&lt;frame&gt;</code> or <code>&lt;object&gt;</code> element to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an <code>&lt;iframe&gt;</code> element with the <code>allowfullscreen</code> attribute can be displayed fullscreen."
                    }
                ],
                "firefox_android": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "9",
                        "alternative_name": "mozRequestFullScreen",
                        "notes": "Before Firefox 44, Firefox incorrectly allowed elements inside a <code>&lt;frame&gt;</code> or an <code>&lt;object&gt;</code> to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an <code><code>&lt;iframe&gt;</code></code> with the <code>allowfullscreen</code> attribute can be displayed fullscreen."
                    }
                ],
                "ie": {
                    "version_added": "11",
                    "alternative_name": "msRequestFullscreen"
                },
                "oculus": "mirror",
                "opera": [
                    {
                        "version_added": "58"
                    },
                    {
                        "version_added": "15",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "15"
                    }
                ],
                "opera_android": [
                    {
                        "version_added": "50"
                    },
                    {
                        "version_added": "14",
                        "prefix": "webkit"
                    },
                    {
                        "version_added": "12.1",
                        "version_removed": "14"
                    }
                ],
                "safari": {
                    "version_added": "5.1",
                    "prefix": "webkit"
                },
                "safari_ios": {
                    "version_added": "12",
                    "prefix": "webkit",
                    "partial_implementation": true,
                    "notes": "Only available on iPad, not on iPhone. Shows an overlay button which can not be disabled."
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "version_added": "37",
                        "prefix": "webkit"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "version_added": "79",
                        "prefix": "webkit"
                    }
                ]
            },
            "title": "Element.requestFullscreen()"
        }
    ],
    "api": [
        {
            "engines": [
                "blink",
                "gecko",
                "webkit"
            ],
            "filename": "api/Element.json",
            "name": "Element",
            "slug": "API/Element",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Element",
            "summary": "Element is the most general base class from which all element objects (i.e. objects that represent elements) in a Document inherit. It only has methods and properties common to all kinds of elements. More specific classes inherit from Element.",
            "support": {
                "chrome": {
                    "version_added": "1"
                },
                "chrome_android": "mirror",
                "edge": {
                    "version_added": "12"
                },
                "firefox": {
                    "version_added": "1"
                },
                "firefox_android": "mirror",
                "ie": {
                    "version_added": "4"
                },
                "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": "37"
                },
                "edge_blink": {
                    "version_added": "79"
                }
            },
            "title": "Element"
        }
    ],
    "ref-for-dom-document-fullscreenelement②": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "filename": "api/ShadowRoot.json",
            "name": "fullscreenElement",
            "slug": "API/ShadowRoot/fullscreenElement",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot/fullscreenElement",
            "summary": "The fullscreenElement read-only property of the ShadowRoot interface returns the element within the shadow tree that is currently displayed in full screen.",
            "support": {
                "chrome": {
                    "version_added": "71"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "63",
                        "alternative_name": "mozFullScreenElement"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "version_added": false
                },
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                    "version_added": false
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "edge_blink": {
                    "version_added": "79"
                }
            },
            "title": "ShadowRoot.fullscreenElement"
        }
    ],
    "::backdrop-pseudo-element": [
        {
            "engines": [
                "blink",
                "gecko",
                "webkit"
            ],
            "filename": "css/selectors/backdrop.json",
            "name": "backdrop",
            "slug": "CSS/::backdrop",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/CSS/::backdrop",
            "summary": "The ::backdrop CSS pseudo-element is a box the size of the viewport which is rendered immediately beneath any element being presented in fullscreen mode. This includes both elements which have been placed in fullscreen mode using the Fullscreen API and <dialog> elements.",
            "support": {
                "chrome": [
                    {
                        "version_added": "37"
                    },
                    {
                        "prefix": "-webkit-",
                        "version_added": "32"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": false
                },
                "firefox": {
                    "version_added": "47"
                },
                "firefox_android": "mirror",
                "ie": {
                    "prefix": "-ms-",
                    "version_added": "11"
                },
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                    "version_added": "15.4"
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "prefix": "-webkit-",
                        "version_added": "79"
                    }
                ]
            },
            "title": "::backdrop"
        }
    ],
    ":fullscreen-pseudo-class": [
        {
            "engines": [
                "blink",
                "gecko"
            ],
            "altname": [
                "webkit"
            ],
            "filename": "css/selectors/fullscreen.json",
            "name": "fullscreen",
            "slug": "CSS/:fullscreen",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/CSS/:fullscreen",
            "summary": "The :fullscreen CSS pseudo-class matches every element which is currently in fullscreen mode. If multiple elements have been put into fullscreen mode, this selects them all.",
            "support": {
                "chrome": [
                    {
                        "version_added": "71"
                    },
                    {
                        "alternative_name": ":-webkit-full-screen",
                        "version_added": "15"
                    }
                ],
                "chrome_android": "mirror",
                "edge": {
                    "version_added": "12"
                },
                "firefox": [
                    {
                        "version_added": "64"
                    },
                    {
                        "version_added": "9",
                        "alternative_name": ":-moz-full-screen"
                    }
                ],
                "firefox_android": "mirror",
                "ie": {
                    "prefix": "-ms-",
                    "version_added": "11"
                },
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                    "alternative_name": ":-webkit-full-screen",
                    "version_added": "6"
                },
                "safari_ios": {
                    "version_added": false
                },
                "samsunginternet_android": "mirror",
                "webview_android": [
                    {
                        "version_added": "71"
                    },
                    {
                        "alternative_name": ":-webkit-full-screen",
                        "version_added": "37"
                    }
                ],
                "edge_blink": [
                    {
                        "version_added": "79"
                    },
                    {
                        "alternative_name": ":-webkit-full-screen",
                        "version_added": "79"
                    }
                ]
            },
            "title": ":fullscreen"
        }
    ],
    "permissions-policy-integration": [
        {
            "engines": [
                "blink"
            ],
            "partial": [
                "gecko"
            ],
            "filename": "http/headers/Feature-Policy.json",
            "name": "fullscreen",
            "slug": "HTTP/Headers/Feature-Policy/fullscreen",
            "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy/fullscreen",
            "summary": "The HTTP Feature-Policy header fullscreen directive controls whether the current document is allowed to use Element.requestFullscreen(). When this policy is enabled, the returned Promise rejects with a TypeError.",
            "support": {
                "chrome": {
                    "version_added": "62"
                },
                "chrome_android": "mirror",
                "edge": "mirror",
                "firefox": {
                    "version_added": "74",
                    "partial_implementation": true,
                    "notes": [
                        "Only supported through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements.",
                        "Before Firefox 80, applying <code>fullscreen</code> to an <code>&lt;iframe&gt;</code> (i.e. via the <code>allow</code> attribute) does not work unless the <code>allowfullscreen</code> attribute is also present."
                    ]
                },
                "firefox_android": "mirror",
                "ie": {
                    "version_added": false
                },
                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
                    "version_added": false
                },
                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "edge_blink": {
                    "version_added": "79"
                }
            },
            "title": "Feature-Policy: fullscreen"
        }
    ]
}
