{
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      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort",
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            "version_added": "4"
          },
          "chrome_android": {
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          },
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": true
          },
          "firefox_android": {
            "version_added": true
          },
          "ie": {
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          },
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          },
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            "version_added": "10.6"
          },
          "opera_android": {
            "version_added": "11"
          },
          "safari": {
            "version_added": "5"
          },
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          },
          "webview_android": {
            "version_added": true
          }
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "close": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/close",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": "10"
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              "version_added": "10.5.0"
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            "opera": {
              "version_added": "10.6"
            },
            "opera_android": {
              "version_added": "11"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5.1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "message_event": {
        "__compat": {
          "description": "<code>message</code> event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/message_event",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": "10"
            },
            "nodejs": {
              "version_added": "10.5.0",
              "partial_implementation": true,
              "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
            },
            "opera": {
              "version_added": "10.6"
            },
            "opera_android": {
              "version_added": "11.5"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5.1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "messageerror_event": {
        "__compat": {
          "description": "<code>messageerror</code> event",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/messageerror_event",
          "support": {
            "chrome": {
              "version_added": "60"
            },
            "chrome_android": {
              "version_added": "60"
            },
            "edge": {
              "version_added": "18"
            },
            "firefox": {
              "version_added": "57"
            },
            "firefox_android": {
              "version_added": "57"
            },
            "ie": {
              "version_added": null
            },
            "nodejs": {
              "version_added": false
            },
            "opera": {
              "version_added": "47"
            },
            "opera_android": {
              "version_added": "47"
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "samsunginternet_android": {
              "version_added": "8.0"
            },
            "webview_android": {
              "version_added": "60"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "onmessage": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/onmessage",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": "10"
            },
            "nodejs": {
              "version_added": false
            },
            "opera": {
              "version_added": "10.6"
            },
            "opera_android": {
              "version_added": "11"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5.1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "onmessageerror": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/onmessageerror",
          "support": {
            "chrome": {
              "version_added": "60"
            },
            "chrome_android": {
              "version_added": "60"
            },
            "edge": {
              "version_added": "18"
            },
            "firefox": {
              "version_added": "57"
            },
            "firefox_android": {
              "version_added": "57"
            },
            "ie": {
              "version_added": null
            },
            "nodejs": {
              "version_added": false
            },
            "opera": {
              "version_added": "47"
            },
            "opera_android": {
              "version_added": "44"
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "samsunginternet_android": {
              "version_added": "8.0"
            },
            "webview_android": {
              "version_added": "60"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "postMessage": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/postMessage",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": "10"
            },
            "nodejs": {
              "version_added": "10.5.0"
            },
            "opera": {
              "version_added": "10.6"
            },
            "opera_android": {
              "version_added": "11"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5.1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "start": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/start",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": "10"
            },
            "nodejs": {
              "version_added": "10.5.0"
            },
            "opera": {
              "version_added": "10.6"
            },
            "opera_android": {
              "version_added": "11"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5.1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "worker_support": {
        "__compat": {
          "description": "Available in workers",
          "support": {
            "chrome": {
              "version_added": true
            },
            "chrome_android": {
              "version_added": true
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "41"
            },
            "firefox_android": {
              "version_added": "41"
            },
            "ie": {
              "version_added": true
            },
            "nodejs": {
              "version_added": true
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": true
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}