{
  "api": {
    "ServiceWorkerRegistration": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration",
        "spec_url": [
          "https://w3c.github.io/ServiceWorker/#serviceworkerregistration-interface",
          "https://w3c.github.io/push-api/#extensions-to-the-serviceworkerregistration-interface"
        ],
        "tags": [
          "web-features:push"
        ],
        "support": {
          "chrome": {
            "version_added": "40"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "17"
          },
          "firefox": {
            "version_added": "44"
          },
          "firefox_android": "mirror",
          "oculus": "mirror",
          "opera": "mirror",
          "opera_android": "mirror",
          "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
        }
      },
      "active": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/active",
          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-active",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "backgroundFetch": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/backgroundFetch",
          "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerregistration-backgroundfetch",
          "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
          }
        }
      },
      "cookies": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/cookies",
          "spec_url": "https://cookiestore.spec.whatwg.org/#dom-serviceworkerregistration-cookies",
          "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
          }
        }
      },
      "getNotifications": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/getNotifications",
          "spec_url": "https://notifications.spec.whatwg.org/#dom-serviceworkerregistration-getnotifications",
          "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": "mirror",
            "opera_android": "mirror",
            "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": {
              "version_added": false,
              "impl_url": "https://crbug.com/40443309"
            },
            "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
          }
        }
      },
      "index": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/index",
          "spec_url": "https://wicg.github.io/content-index/spec/#dom-serviceworkerregistration-index",
          "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
          }
        }
      },
      "installing": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/installing",
          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-installing",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "navigationPreload": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/navigationPreload",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-registration-navigationpreload",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "59"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "99"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "15.4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "paymentManager": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/paymentManager",
          "spec_url": "https://w3c.github.io/web-based-payment-handler/#dom-serviceworkerregistration-paymentmanager",
          "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": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/periodicSync",
          "spec_url": "https://wicg.github.io/periodic-background-sync/#dom-serviceworkerregistration-periodicsync",
          "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
          }
        }
      },
      "pushManager": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/pushManager",
          "spec_url": "https://w3c.github.io/push-api/#dom-serviceworkerregistration-pushmanager",
          "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": "mirror",
            "opera_android": "mirror",
            "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": {
              "version_added": false
            },
            "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
          }
        }
      },
      "scope": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/scope",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-registration-scope",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "showNotification": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification",
          "spec_url": "https://notifications.spec.whatwg.org/#dom-serviceworkerregistration-shownotification",
          "tags": [
            "web-features:notifications"
          ],
          "support": {
            "chrome": {
              "version_added": "42"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "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": {
              "version_added": false,
              "impl_url": "https://crbug.com/40443309"
            },
            "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
          }
        },
        "options_actions_parameter": {
          "__compat": {
            "description": "`options.actions` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "48"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "18"
              },
              "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
            }
          }
        },
        "options_badge_parameter": {
          "__compat": {
            "description": "`options.badge` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "53"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": false
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": {
                "version_added": "39"
              },
              "opera_android": "mirror",
              "safari": {
                "version_added": false,
                "impl_url": "https://webkit.org/b/280160"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": {
                "version_added": false
              },
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "options_data_parameter": {
          "__compat": {
            "description": "`options.data` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "44"
              },
              "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
            }
          }
        },
        "options_image_parameter": {
          "__compat": {
            "description": "`options.image` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "56"
              },
              "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
            }
          }
        },
        "options_renotify_parameter": {
          "__compat": {
            "description": "`options.renotify` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "50"
              },
              "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
            }
          }
        },
        "options_requireInteraction_parameter": {
          "__compat": {
            "description": "`options.requireInteraction` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "47"
              },
              "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
            }
          }
        },
        "options_vibrate_parameter": {
          "__compat": {
            "description": "`options.vibrate` parameter",
            "tags": [
              "web-features:notifications"
            ],
            "support": {
              "chrome": {
                "version_added": "45"
              },
              "chrome_android": {
                "version_added": false,
                "notes": "In Android Oreo and above, regardless of Chrome version, this parameter has no effect. See <a href='https://crbug.com/40630890'>bug 40630890</a>."
              },
              "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
            }
          }
        }
      },
      "sync": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/sync",
          "spec_url": "https://wicg.github.io/background-sync/spec/#dom-serviceworkerregistration-sync",
          "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": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false,
              "impl_url": "https://webkit.org/b/182565"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false,
              "impl_url": "https://crbug.com/40449796"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "unregister": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/unregister",
          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-unregister",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "update": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/update",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-registration-update",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "45",
              "notes": [
                "Starting with Chrome 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.",
                "Before Chrome 48, this method always bypassed the browser cache. Starting with Chrome 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago."
              ]
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "44"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "11.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "4.0",
              "notes": [
                "Starting with Samsung Internet 5.0, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.",
                "Before Samsung Internet 5.0, this method always bypassed the browser cache. Starting with Samsung Internet 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago."
              ]
            },
            "webview_android": "mirror",
            "webview_ios": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "updatefound_event": {
        "__compat": {
          "description": "`updatefound` event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/updatefound_event",
          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerregistration-onupdatefound",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "updateViaCache": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/updateViaCache",
          "spec_url": "https://w3c.github.io/ServiceWorker/#service-worker-registration-updateviacache",
          "tags": [
            "web-features:service-workers"
          ],
          "support": {
            "chrome": {
              "version_added": "68"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "18"
            },
            "firefox": {
              "version_added": "57"
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      },
      "waiting": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/waiting",
          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-waiting",
          "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": "mirror",
            "opera_android": "mirror",
            "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
          }
        }
      }
    }
  }
}