{
  "api": {
    "ServiceWorkerMessageEvent": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent",
        "support": {
          "chrome": {
            "version_added": "45"
          },
          "chrome_android": {
            "version_added": "45"
          },
          "edge": [
            {
              "version_added": "17"
            },
            {
              "version_added": "16",
              "flags": [
                {
                  "type": "preference",
                  "name": "Enable service workers"
                }
              ]
            }
          ],
          "firefox": {
            "version_added": "44",
            "version_removed": "55",
            "notes": [
              "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
              "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
            ]
          },
          "firefox_android": {
            "version_added": "44",
            "version_removed": "55"
          },
          "ie": {
            "version_added": false
          },
          "opera": {
            "version_added": "24"
          },
          "opera_android": {
            "version_added": "24"
          },
          "safari": {
            "version_added": false
          },
          "safari_ios": {
            "version_added": false
          },
          "samsunginternet_android": {
            "version_added": "4.0"
          },
          "webview_android": {
            "version_added": false
          }
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": true
        }
      },
      "ServiceWorkerMessageEvent": {
        "__compat": {
          "description": "<code>ServiceWorkerMessageEvent()</code> constructor",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/ServiceWorkerMessageEvent",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      },
      "data": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/data",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      },
      "lastEventId": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/lastEventId",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      },
      "origin": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/origin",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      },
      "ports": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/ports",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      },
      "source": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerMessageEvent/source",
          "support": {
            "chrome": {
              "version_added": "45"
            },
            "chrome_android": {
              "version_added": "45"
            },
            "edge": [
              {
                "version_added": "17"
              },
              {
                "version_added": "16",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable service workers"
                  }
                ]
              }
            ],
            "firefox": {
              "version_added": "44",
              "version_removed": "55",
              "notes": [
                "<a href='https://www.mozilla.org/en-US/firefox/organizations/'>Extended Support Releases (ESR)</a> before Firefox 78 ESR do not support service workers and the Push API.",
                "In Firefox 55 and later, the standard <code>MessageEvent</code> interface must be used instead."
              ]
            },
            "firefox_android": {
              "version_added": "44",
              "version_removed": "55"
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": "24"
            },
            "opera_android": {
              "version_added": "24"
            },
            "safari": {
              "version_added": false
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": "4.0"
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": true
          }
        }
      }
    }
  }
}