{
  "api": {
    "HTMLFieldSetElement": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement",
        "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#htmlfieldsetelement",
        "tags": [
          "web-features:fieldset"
        ],
        "support": {
          "chrome": {
            "version_added": "1"
          },
          "chrome_android": "mirror",
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "1"
          },
          "firefox_android": "mirror",
          "ie": {
            "version_added": "5.5"
          },
          "oculus": "mirror",
          "opera": {
            "version_added": "≤12.1"
          },
          "opera_android": {
            "version_added": "≤12.1"
          },
          "safari": {
            "version_added": "3"
          },
          "safari_ios": {
            "version_added": "1"
          },
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "checkValidity": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/checkValidity",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity-dev",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5"
            },
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "≤37"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "disabled": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/disabled",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-disabled",
          "tags": [
            "web-features:fieldset"
          ],
          "support": {
            "chrome": {
              "version_added": "20"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "5.5"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "elements": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/elements",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-elements-dev",
          "tags": [
            "web-features:fieldset"
          ],
          "support": {
            "chrome": {
              "version_added": "21"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "7"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "type_HTMLCollection": {
          "__compat": {
            "description": "Returns an `HTMLCollection`",
            "tags": [
              "web-features:fieldset"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "≤18"
              },
              "firefox": {
                "version_added": "4"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "13"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      },
      "form": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/form",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
          "tags": [
            "web-features:fieldset"
          ],
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "6"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "3"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "name": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/name",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
          "tags": [
            "web-features:fieldset"
          ],
          "support": {
            "chrome": {
              "version_added": "19"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "14"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "reportValidity": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/reportValidity",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "40"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "49"
            },
            "firefox_android": {
              "version_added": "64"
            },
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "setCustomValidity": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/setCustomValidity",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity-dev",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "4",
              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "5"
            },
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "≤37"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "type": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/type",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-type-dev",
          "tags": [
            "web-features:fieldset"
          ],
          "support": {
            "chrome": {
              "version_added": "19"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "17"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "validationMessage": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validationMessage",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "5"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "4"
            },
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "≤37"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "validity": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validity",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "5"
            },
            "safari_ios": {
              "version_added": "4"
            },
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "≤37"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "willValidate": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/willValidate",
          "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
          "tags": [
            "web-features:constraint-validation"
          ],
          "support": {
            "chrome": {
              "version_added": "2"
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "4"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "≤12.1"
            },
            "opera_android": {
              "version_added": "≤12.1"
            },
            "safari": {
              "version_added": "4"
            },
            "safari_ios": {
              "version_added": "3"
            },
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "≤37"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}