{
  "api": {
    "ServiceWorkerGlobalScope": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope",
        "spec_url": "https://w3c.github.io/ServiceWorker/#serviceworkerglobalscope-interface",
        "tags": [
          "web-features:service-workers"
        ],
        "support": {
          "chrome": {
            "version_added": "40"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "17"
          },
          "firefox": {
            "version_added": "44"
          },
          "firefox_android": "mirror",
          "oculus": "mirror",
          "opera": {
            "version_added": "24"
          },
          "opera_android": {
            "version_added": "24"
          },
          "safari": {
            "version_added": "11.1"
          },
          "safari_ios": "mirror",
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": {
            "version_added": false
          }
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "abortpayment_event": {
        "__compat": {
          "description": "`abortpayment` event",
          "support": {
            "chrome": {
              "version_added": "70"
            },
            "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": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": false,
            "deprecated": false
          }
        }
      },
      "activate_event": {
        "__compat": {
          "description": "`activate` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/activate_event",
          "spec_url": [
            "https://w3c.github.io/ServiceWorker/#service-worker-global-scope-activate-event",
            "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onactivate"
          ],
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "backgroundfetchabort_event": {
        "__compat": {
          "description": "`backgroundfetchabort` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event",
          "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchabort",
          "tags": [
            "web-features:background-fetch"
          ],
          "support": {
            "chrome": {
              "version_added": "74"
            },
            "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": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "backgroundfetchclick_event": {
        "__compat": {
          "description": "`backgroundfetchclick` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event",
          "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchclick",
          "tags": [
            "web-features:background-fetch"
          ],
          "support": {
            "chrome": {
              "version_added": "74"
            },
            "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": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "backgroundfetchfail_event": {
        "__compat": {
          "description": "`backgroundfetchfail` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event",
          "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchfail",
          "tags": [
            "web-features:background-fetch"
          ],
          "support": {
            "chrome": {
              "version_added": "74"
            },
            "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": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "backgroundfetchsuccess_event": {
        "__compat": {
          "description": "`backgroundfetchsuccess` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event",
          "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchsuccess",
          "tags": [
            "web-features:background-fetch"
          ],
          "support": {
            "chrome": {
              "version_added": "74"
            },
            "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": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "canmakepayment_event": {
        "__compat": {
          "description": "`canmakepayment` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event",
          "spec_url": "https://w3c.github.io/payment-handler/#the-canmakepaymentevent",
          "tags": [
            "web-features:payment-handler"
          ],
          "support": {
            "chrome": {
              "version_added": "70"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1465682"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "clients": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/clients",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-global-scope-clients",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "contentdelete_event": {
        "__compat": {
          "description": "`contentdelete` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event",
          "spec_url": "https://wicg.github.io/content-index/spec/#dom-serviceworkerglobalscope-oncontentdelete",
          "tags": [
            "web-features:content-index"
          ],
          "support": {
            "chrome": {
              "version_added": false
            },
            "chrome_android": {
              "version_added": "84"
            },
            "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": true,
            "deprecated": false
          }
        }
      },
      "cookiechange_event": {
        "__compat": {
          "description": "`cookiechange` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event",
          "spec_url": "https://cookiestore.spec.whatwg.org/#dom-serviceworkerglobalscope-oncookiechange",
          "tags": [
            "web-features:cookie-store"
          ],
          "support": {
            "chrome": {
              "version_added": "87"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "140"
            },
            "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
          }
        }
      },
      "cookieStore": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/cookieStore",
          "spec_url": "https://cookiestore.spec.whatwg.org/#dom-serviceworkerglobalscope-cookiestore",
          "tags": [
            "web-features:cookie-store"
          ],
          "support": {
            "chrome": {
              "version_added": "87"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "140"
            },
            "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": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "fetch_event": {
        "__compat": {
          "description": "`fetch` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/fetch_event",
          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onfetch",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "install_event": {
        "__compat": {
          "description": "`install` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/install_event",
          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-oninstall",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "message_event": {
        "__compat": {
          "description": "`message` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/message_event",
          "spec_url": [
            "https://w3c.github.io/ServiceWorker/#eventdef-serviceworkerglobalscope-message",
            "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onmessage"
          ],
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "messageerror_event": {
        "__compat": {
          "description": "`messageerror` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event",
          "spec_url": [
            "https://w3c.github.io/ServiceWorker/#eventdef-serviceworkerglobalscope-messageerror",
            "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onmessageerror"
          ],
          "tags": [
            "web-features:messageerror"
          ],
          "support": {
            "chrome": {
              "version_added": "81"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "65"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "11.1",
              "partial_implementation": true,
              "notes": "Although the `onmessageerror` property is supported, the `messageerror` event is never fired. See [bug 272967](https://webkit.org/b/272967)."
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "notificationclick_event": {
        "__compat": {
          "description": "`notificationclick` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event",
          "spec_url": [
            "https://notifications.spec.whatwg.org/#activating-a-notification",
            "https://notifications.spec.whatwg.org/#dom-serviceworkerglobalscope-onnotificationclick"
          ],
          "tags": [
            "web-features:notifications"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": "mirror",
            "safari": {
              "version_added": "16",
              "notes": "Notifications are supported on macOS Ventura and later."
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "notificationclose_event": {
        "__compat": {
          "description": "`notificationclose` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event",
          "spec_url": "https://notifications.spec.whatwg.org/#dom-serviceworkerglobalscope-onnotificationclose",
          "tags": [
            "web-features:notifications"
          ],
          "support": {
            "chrome": {
              "version_added": "50"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "34"
            },
            "opera_android": {
              "version_added": "34"
            },
            "safari": {
              "version_added": "16",
              "notes": "Notifications are supported on macOS Ventura and later."
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "paymentrequest_event": {
        "__compat": {
          "description": "`paymentrequest` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event",
          "spec_url": "https://w3c.github.io/payment-handler/#the-paymentrequestevent",
          "tags": [
            "web-features:payment-handler"
          ],
          "support": {
            "chrome": {
              "version_added": "70"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false,
              "impl_url": "https://bugzil.la/1465682"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": false
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "periodicsync_event": {
        "__compat": {
          "description": "`periodicsync` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event",
          "spec_url": [
            "https://wicg.github.io/periodic-background-sync/#periodicsync-event",
            "https://wicg.github.io/periodic-background-sync/#dom-serviceworkerglobalscope-onperiodicsync"
          ],
          "tags": [
            "web-features:periodic-background-sync"
          ],
          "support": {
            "chrome": {
              "version_added": "80"
            },
            "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": {
              "version_added": false,
              "impl_url": "https://crbug.com/40151529"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "push_event": {
        "__compat": {
          "description": "`push` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event",
          "spec_url": [
            "https://w3c.github.io/push-api/#extensions-to-the-serviceworkerglobalscope-interface",
            "https://w3c.github.io/push-api/#dom-serviceworkerglobalscope-onpush"
          ],
          "tags": [
            "web-features:push"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": {
              "version_added": "48"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": "16",
              "notes": "Notifications are supported on macOS Ventura and later."
            },
            "safari_ios": {
              "version_added": "16.4",
              "notes": "Notifications are supported in web apps saved to the home screen."
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false,
              "notes": "Notifications are supported in web apps saved to the home screen."
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "pushsubscriptionchange_event": {
        "__compat": {
          "description": "`pushsubscriptionchange` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event",
          "spec_url": [
            "https://w3c.github.io/push-api/#the-pushsubscriptionchange-event",
            "https://w3c.github.io/push-api/#dom-serviceworkerglobalscope-onpushsubscriptionchange"
          ],
          "tags": [
            "web-features:push"
          ],
          "support": {
            "chrome": {
              "version_added": "138"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17",
              "version_removed": "79"
            },
            "firefox": {
              "version_added": "44",
              "partial_implementation": true,
              "notes": "The event does not have the `oldSubscription` and `newSubscription` properties. See [bug 1497429](https://bugzil.la/1497429)."
            },
            "firefox_android": {
              "version_added": "48",
              "partial_implementation": true,
              "notes": "The event does not have the `oldSubscription` and `newSubscription` properties. See [bug 1497429](https://bugzil.la/1497429)."
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "16",
              "notes": "Notifications are supported on macOS Ventura and later."
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "registration": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-global-scope-registration",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "42"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "26"
            },
            "opera_android": {
              "version_added": "26"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "serviceWorker": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker",
          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-serviceworker",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "79"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "15.4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "skipWaiting": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-global-scope-skipwaiting",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "41"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "25"
            },
            "opera_android": {
              "version_added": "25"
            },
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "sync_event": {
        "__compat": {
          "description": "`sync` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/sync_event",
          "spec_url": "https://wicg.github.io/background-sync/spec/#dom-serviceworkerglobalscope-onsync",
          "tags": [
            "web-features:background-sync"
          ],
          "support": {
            "chrome": {
              "version_added": "49"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": false
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false,
              "impl_url": "https://webkit.org/b/182565"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": false,
              "impl_url": "https://crbug.com/40449796"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}