{
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            },
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            },
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              "version_added": null
            },
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              "version_added": null
            },
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            "safari_ios": {
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            "standard_track": true,
            "deprecated": false
          }
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            },
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      },
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            },
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            },
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            "firefox": {
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            },
            "firefox_android": {
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            "opera": {
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            },
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              "version_added": "35"
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            "safari_ios": {
              "version_added": true
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          },
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            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "onloading": {
        "__compat": {
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          "support": {
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            },
            "chrome_android": {
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            },
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            },
            "firefox": {
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              "version_added": true
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            },
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            },
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            },
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            },
            "safari_ios": {
              "version_added": true
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          },
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            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "onloadingdone": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/onloadingdone",
          "support": {
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              "version_added": "48"
            },
            "chrome_android": {
              "version_added": "48"
            },
            "edge": {
              "version_added": "≤79"
            },
            "firefox": {
              "version_added": true
            },
            "firefox_android": {
              "version_added": true
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              "version_added": null
            },
            "opera": {
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            },
            "opera_android": {
              "version_added": "35"
            },
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            },
            "safari_ios": {
              "version_added": true
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          },
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            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "onloadingerror": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/onloadingerror",
          "support": {
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              "version_added": "48"
            },
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            },
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          },
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            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
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        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/ready",
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              "version_added": "35"
            },
            "chrome_android": {
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            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "status": {
        "__compat": {
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            },
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          },
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            "standard_track": true,
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        }
      },
      "worker_support": {
        "__compat": {
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          "support": {
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            },
            "chrome_android": {
              "version_added": "69"
            },
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            "firefox": {
              "version_added": null
            },
            "firefox_android": {
              "version_added": null
            },
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              "version_added": null
            },
            "opera": {
              "version_added": null
            },
            "opera_android": {
              "version_added": null
            },
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              "version_added": null
            },
            "safari_ios": {
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            },
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            }
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}