{
  "html": {
    "elements": {
      "iframe": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/iframe",
          "support": {
            "webview_android": {
              "version_added": true
            },
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": {
              "version_added": true
            },
            "edge": {
              "version_added": true
            },
            "edge_mobile": {
              "version_added": true
            },
            "firefox": {
              "version_added": true,
              "notes": "The <code>resize</code> CSS property doesn't have any effect on this element due to <a href='https://bugzil.la/680823'>bug 680823</a>."
            },
            "firefox_android": {
              "version_added": true,
              "notes": "The <code>resize</code> CSS property doesn't have any effect on this element due to <a href='https://bugzil.la/680823'>bug 680823</a>."
            },
            "ie": {
              "version_added": true
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": true,
              "notes": "Safari has a <a href='https://www.quirksmode.org/bugreports/archives/2005/02/hidden_iframes.html'>bug</a> that prevents iframes from loading if the <code>iframe</code> element was hidden when added to the page. <code>iframeElement.src = iframeElement.src</code> should cause it to load the iframe."
            },
            "safari_ios": {
              "version_added": true,
              "notes": "Safari has a <a href='https://www.quirksmode.org/bugreports/archives/2005/02/hidden_iframes.html'>bug</a> that prevents iframes from loading if the <code>iframe</code> element was hidden when added to the page. <code>iframeElement.src = iframeElement.src</code> should cause it to load the iframe."
            },
            "samsunginternet_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "align": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "allowfullscreen": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": null
              },
              "chrome": [
                {
                  "version_added": "27"
                },
                {
                  "prefix": "webkit",
                  "version_added": "17"
                }
              ],
              "chrome_android": {
                "version_added": null
              },
              "edge": {
                "version_added": true
              },
              "edge_mobile": {
                "version_added": true
              },
              "firefox": [
                {
                  "version_added": "18"
                },
                {
                  "prefix": "moz",
                  "version_added": "9"
                }
              ],
              "firefox_android": [
                {
                  "version_added": "18"
                },
                {
                  "prefix": "moz",
                  "version_added": "9"
                }
              ],
              "ie": {
                "prefix": "ms",
                "version_added": "11"
              },
              "opera": {
                "version_added": true
              },
              "opera_android": {
                "version_added": false
              },
              "safari": [
                {
                  "version_added": "7"
                },
                {
                  "prefix": "webkit",
                  "version_added": true
                }
              ],
              "safari_ios": [
                {
                  "version_added": "7"
                },
                {
                  "prefix": "webkit",
                  "version_added": true
                }
              ],
              "samsunginternet_android": {
                "version_added": null
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "allowpaymentrequest": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": false
              },
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "edge_mobile": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": true,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "frameborder": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "height": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "longdesc": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "marginheight": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "marginwidth": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "name": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "referrerpolicy": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": "51"
              },
              "chrome": {
                "version_added": "51"
              },
              "chrome_android": {
                "version_added": "51"
              },
              "edge": {
                "version_added": false
              },
              "edge_mobile": {
                "version_added": false
              },
              "firefox": {
                "version_added": "50"
              },
              "firefox_android": {
                "version_added": "50"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": null
              },
              "opera_android": {
                "version_added": null
              },
              "safari": {
                "version_added": null
              },
              "safari_ios": {
                "version_added": null
              },
              "samsunginternet_android": {
                "version_added": "5.0"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "scrolling": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": true
            }
          }
        },
        "sandbox": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "4"
              },
              "chrome_android": {
                "version_added": true
              },
              "edge": {
                "version_added": true
              },
              "edge_mobile": {
                "version_added": true
              },
              "firefox": {
                "version_added": "17"
              },
              "firefox_android": {
                "version_added": "17"
              },
              "ie": {
                "version_added": "10"
              },
              "opera": {
                "version_added": "15"
              },
              "opera_android": {
                "version_added": null
              },
              "safari": {
                "version_added": "5"
              },
              "safari_ios": {
                "version_added": "4.2"
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          },
          "sandbox-allow-popups": {
            "__compat": {
              "description": "<code>sandbox='allow-popups'</code>",
              "support": {
                "webview_android": {
                  "version_added": null
                },
                "chrome": {
                  "version_added": true
                },
                "chrome_android": {
                  "version_added": null
                },
                "edge": {
                  "version_added": true
                },
                "edge_mobile": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": "28"
                },
                "firefox_android": {
                  "version_added": "27"
                },
                "ie": {
                  "version_added": null
                },
                "opera": {
                  "version_added": null
                },
                "opera_android": {
                  "version_added": null
                },
                "safari": {
                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
                "samsunginternet_android": {
                  "version_added": null
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          },
          "sandbox-allow-popups-to-escape-sandbox": {
            "__compat": {
              "description": "<code>sandbox='allow-popups-to-escape-sandbox'</code>",
              "support": {
                "webview_android": {
                  "version_added": "46"
                },
                "chrome": {
                  "version_added": "46"
                },
                "chrome_android": {
                  "version_added": "46"
                },
                "edge": {
                  "version_added": false
                },
                "edge_mobile": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": {
                  "version_added": "49"
                },
                "ie": {
                  "version_added": false
                },
                "opera": {
                  "version_added": "32"
                },
                "opera_android": {
                  "version_added": "32"
                },
                "safari": {
                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
                "samsunginternet_android": {
                  "version_added": "5.0"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          },
          "sandbox-allow-modals": {
            "__compat": {
              "description": "<code>sandbox='allow-modals'</code>",
              "support": {
                "webview_android": {
                  "version_added": null
                },
                "chrome": {
                  "version_added": null
                },
                "chrome_android": {
                  "version_added": null
                },
                "edge": {
                  "version_added": false
                },
                "edge_mobile": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": {
                  "version_added": "49"
                },
                "ie": {
                  "version_added": false
                },
                "opera": {
                  "version_added": null
                },
                "opera_android": {
                  "version_added": null
                },
                "safari": {
                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
                "samsunginternet_android": {
                  "version_added": null
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          },
          "sandbox-allow-presentation": {
            "__compat": {
              "description": "<code>sandbox='allow-presentation'</code>",
              "support": {
                "webview_android": {
                  "version_added": false
                },
                "chrome": {
                  "version_added": "53"
                },
                "chrome_android": {
                  "version_added": "53"
                },
                "edge": {
                  "version_added": false
                },
                "edge_mobile": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": null
                },
                "firefox_android": {
                  "version_added": null
                },
                "ie": {
                  "version_added": false
                },
                "opera": {
                  "version_added": "40"
                },
                "opera_android": {
                  "version_added": "40"
                },
                "safari": {
                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
                "samsunginternet_android": {
                  "version_added": "6.0"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          },
          "sandbox-allow-top-navigation-by-user-activation": {
            "__compat": {
              "description": "<code>sandbox='allow-top-navigation-by-user-activation'</code>",
              "support": {
                "webview_android": {
                  "version_added": "58"
                },
                "chrome": {
                  "version_added": "58"
                },
                "chrome_android": {
                  "version_added": "58"
                },
                "edge": {
                  "version_added": false
                },
                "edge_mobile": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": null
                },
                "firefox_android": {
                  "version_added": null
                },
                "ie": {
                  "version_added": false
                },
                "opera": {
                  "version_added": "45"
                },
                "opera_android": {
                  "version_added": "45"
                },
                "safari": {
                  "version_added": null
                },
                "safari_ios": {
                  "version_added": null
                },
                "samsunginternet_android": {
                  "version_added": "7.0"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
        },
        "src": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "srcdoc": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": null
              },
              "chrome": {
                "version_added": "20"
              },
              "chrome_android": {
                "version_added": null
              },
              "edge": {
                "version_added": false
              },
              "edge_mobile": {
                "version_added": false
              },
              "firefox": {
                "version_added": "25"
              },
              "firefox_android": {
                "version_added": "25"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "15"
              },
              "opera_android": {
                "version_added": null
              },
              "safari": {
                "version_added": "6"
              },
              "safari_ios": {
                "version_added": null
              },
              "samsunginternet_android": {
                "version_added": null
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "width": {
          "__compat": {
            "support": {
              "webview_android": {
                "version_added": true
              },
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": true
              },
              "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
              },
              "opera_android": {
                "version_added": true
              },
              "safari": {
                "version_added": true
              },
              "safari_ios": {
                "version_added": true
              },
              "samsunginternet_android": {
                "version_added": true
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}