{
  "api": {
    "MessageChannel": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel",
        "support": {
          "chrome": {
            "version_added": "4"
          },
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          },
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          },
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            "version_added": true
          },
          "firefox": {
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          },
          "firefox_android": {
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          },
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          },
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          },
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          },
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          },
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          },
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          }
        },
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          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "MessageChannel": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/MessageChannel",
          "support": {
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              "version_added": "4"
            },
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            },
            "edge": {
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            },
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              "version_added": true
            },
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            },
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              "version_added": "41"
            },
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            },
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            },
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            },
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            }
          },
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            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "port1": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/port1",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": true
            },
            "edge_mobile": {
              "version_added": true
            },
            "firefox": {
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            },
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            },
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            },
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            },
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          },
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            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "port2": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/port2",
          "support": {
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              "version_added": "4"
            },
            "chrome_android": {
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            },
            "edge": {
              "version_added": true
            },
            "edge_mobile": {
              "version_added": true
            },
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            },
            "firefox_android": {
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            },
            "ie": {
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            },
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            },
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            },
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        }
      }
    }
  }
}