{
  "api": {
    "MutationObserverInit": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit",
        "support": {
          "chrome": [
            {
              "version_added": "26"
            },
            {
              "prefix": "webkit",
              "version_added": "18",
              "version_removed": "26"
            }
          ],
          "chrome_android": [
            {
              "version_added": "26"
            },
            {
              "prefix": "webkit",
              "version_added": "18",
              "version_removed": "26"
            }
          ],
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "14"
          },
          "firefox_android": {
            "version_added": "14"
          },
          "ie": {
            "version_added": "11"
          },
          "opera": {
            "version_added": "15"
          },
          "opera_android": {
            "version_added": "14"
          },
          "safari": [
            {
              "version_added": "7"
            },
            {
              "prefix": "webkit",
              "version_added": "6",
              "version_removed": "7"
            }
          ],
          "safari_ios": [
            {
              "version_added": "7"
            },
            {
              "prefix": "webkit",
              "version_added": "6",
              "version_removed": "7"
            }
          ],
          "samsunginternet_android": [
            {
              "version_added": "1.5"
            },
            {
              "prefix": "webkit",
              "version_added": "1.0",
              "version_removed": "1.5"
            }
          ]
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "attributeFilter": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/attributeFilter",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12",
              "notes": "Before Edge 79, this requires <code>attributes: true</code> when using <code>attributeFilter</code>. If <code>attributes: true</code> is not present, then Edge throws a syntax error."
            },
            "firefox": {
              "version_added": "14"
            },
            "firefox_android": {
              "version_added": "14"
            },
            "ie": {
              "version_added": "11",
              "notes": "Internet Explorer requires <code>attributes: true</code> when using <code>attributeFilter</code>. If <code>attributes: true</code> is not present, then Internet Explorer throws a syntax error."
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "attributeOldValue": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/attributeOldValue",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>attributeOldValue</code> has no default value; previously, its default value was <code>false</code>."
            },
            "firefox_android": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>attributeOldValue</code> has no default value; previously, its default value was <code>false</code>."
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "attributes": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/attributes",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>attributes</code> has no default value; previously, its default value was <code>false</code>."
            },
            "firefox_android": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>attributes</code> has no default value; previously, its default value was <code>false</code>."
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "characterData": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/characterData",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>characterData</code> has no default value; previously, its default value was <code>false</code>."
            },
            "firefox_android": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>characterData</code> has no default value; previously, its default value was <code>false</code>."
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "characterDataOldValue": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/characterDataOldValue",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>characterDataOldValue</code> has no default value; previously, its default value was <code>false</code>."
            },
            "firefox_android": {
              "version_added": "14",
              "notes": "Starting in Firefox 36, <code>characterDataOldValue</code> has no default value; previously, its default value was <code>false</code>."
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "childList": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/childList",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14"
            },
            "firefox_android": {
              "version_added": "14"
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "subtree": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserverInit/subtree",
          "support": {
            "chrome": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "chrome_android": [
              {
                "version_added": "26"
              },
              {
                "prefix": "webkit",
                "version_added": "18",
                "version_removed": "26"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "14"
            },
            "firefox_android": {
              "version_added": "14"
            },
            "ie": {
              "version_added": "11"
            },
            "opera": {
              "version_added": "15"
            },
            "opera_android": {
              "version_added": "14"
            },
            "safari": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "safari_ios": [
              {
                "version_added": "7"
              },
              {
                "prefix": "webkit",
                "version_added": "6",
                "version_removed": "7"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "1.5"
              },
              {
                "prefix": "webkit",
                "version_added": "1.0",
                "version_removed": "1.5"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}