{
  "api": {
    "Attr": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr",
        "support": {
          "chrome": {
            "version_added": true,
            "notes": "As of Chrome 45, this property no longer inherits from Node."
          },
          "chrome_android": {
            "version_added": true,
            "notes": "As of Chrome 45, this property no longer inherits from Node."
          },
          "edge": {
            "version_added": true
          },
          "edge_mobile": {
            "version_added": true
          },
          "firefox": {
            "version_added": true
          },
          "firefox_android": {
            "version_added": true
          },
          "ie": {
            "version_added": true
          },
          "opera": {
            "version_added": true,
            "notes": "As of Opera 32, this property no longer inherits from Node."
          },
          "opera_android": {
            "version_added": true,
            "notes": "As of Opera 32, this property no longer inherits from Node."
          },
          "safari": {
            "version_added": true
          },
          "safari_ios": {
            "version_added": true
          },
          "webview_android": {
            "version_added": true,
            "notes": "As of Chrome 45, this property no longer inherits from Node."
          }
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "localName": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/localName",
          "support": {
            "chrome": {
              "version_added": "46",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "firefox": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "firefox_android": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "ie": {
              "version_added": null
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "webview_android": {
              "version_added": null
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "namespaceURI": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/namespaceURI",
          "support": {
            "chrome": {
              "version_added": "46",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "firefox": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "firefox_android": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "ie": {
              "version_added": null
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "webview_android": {
              "version_added": null
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "prefix": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/prefix",
          "support": {
            "chrome": {
              "version_added": "46",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "edge": {
              "version_added": true
            },
            "firefox": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "firefox_android": {
              "version_added": "48",
              "notes": "This API was previously available on the <a href='https://developer.mozilla.org/docs/Web/API/Node'><code>Node</code></a> API."
            },
            "ie": {
              "version_added": null
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "webview_android": {
              "version_added": null
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}