{
  "api": {
    "TextMetrics": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics",
        "support": {
          "chrome": {
            "version_added": "4"
          },
          "chrome_android": {
            "version_added": true
          },
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "1.5"
          },
          "firefox_android": {
            "version_added": "31"
          },
          "ie": {
            "version_added": "9"
          },
          "opera": {
            "version_added": "9"
          },
          "opera_android": {
            "version_added": true
          },
          "safari": {
            "version_added": "3.1"
          },
          "safari_ios": {
            "version_added": true
          },
          "samsunginternet_android": {
            "version_added": true
          },
          "webview_android": {
            "version_added": true
          }
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "actualBoundingBoxAscent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxAscent",
          "support": {
            "chrome": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "chrome_android": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "edge": {
              "version_added": "79"
            },
            "firefox": {
              "version_added": "74"
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": "12.0"
            },
            "webview_android": {
              "version_added": "77"
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "actualBoundingBoxDescent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxDescent",
          "support": {
            "chrome": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "chrome_android": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "edge": {
              "version_added": "79"
            },
            "firefox": {
              "version_added": "74"
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": "12.0"
            },
            "webview_android": {
              "version_added": "77"
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "actualBoundingBoxLeft": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxLeft",
          "support": {
            "chrome": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "chrome_android": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "edge": {
              "version_added": "79"
            },
            "firefox": {
              "version_added": "74"
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": "12.0"
            },
            "webview_android": {
              "version_added": "77"
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "actualBoundingBoxRight": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxRight",
          "support": {
            "chrome": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "chrome_android": [
              {
                "version_added": "77"
              },
              {
                "version_added": true,
                "version_removed": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Experimental Web Platform Features"
                  }
                ]
              }
            ],
            "edge": {
              "version_added": "79"
            },
            "firefox": {
              "version_added": "74"
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": "12.0"
            },
            "webview_android": {
              "version_added": "77"
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "alphabeticBaseline": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/alphabeticBaseline",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.baselines.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "emHeightAscent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/emHeightAscent",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.emHeight.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "emHeightDescent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/emHeightDescent",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.emHeight.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "fontBoundingBoxAscent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/fontBoundingBoxAscent",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.fontBoundingBox.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "fontBoundingBoxDescent": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/fontBoundingBoxDescent",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.fontBoundingBox.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": false
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "hangingBaseline": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/hangingBaseline",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.baselines.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "ideographicBaseline": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/ideographicBaseline",
          "support": {
            "chrome": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "chrome_android": {
              "version_added": true,
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "edge": {
              "version_added": "79",
              "flags": [
                {
                  "type": "preference",
                  "name": "Experimental Web Platform Features"
                }
              ]
            },
            "firefox": {
              "version_added": "74",
              "flags": [
                {
                  "type": "preference",
                  "name": "dom.textMetrics.baselines.enabled",
                  "value_to_set": "true"
                }
              ]
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
            "safari": {
              "version_added": true
            },
            "safari_ios": {
              "version_added": true
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": false
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "width": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/width",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": true
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1.5"
            },
            "firefox_android": {
              "version_added": "31"
            },
            "ie": {
              "version_added": "9"
            },
            "opera": {
              "version_added": "9"
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": {
              "version_added": "3.2"
            },
            "samsunginternet_android": {
              "version_added": true
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}