{
  "http": {
    "headers": {
      "Alt-Svc": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Alt-Svc",
          "support": {
            "chrome": {
              "version_added": true
            },
            "chrome_android": {
              "version_added": true
            },
            "edge": {
              "version_added": "≤79"
            },
            "firefox": [
              {
                "version_added": "38"
              },
              {
                "version_added": "37",
                "version_removed": "38",
                "partial_implementation": true,
                "notes": "Only supports draft-04"
              },
              {
                "version_added": "35",
                "version_removed": "37",
                "partial_implementation": true,
                "notes": "Only supports draft-03",
                "flags": [
                  {
                    "name": "network.http.altsvc.enabled",
                    "type": "preference",
                    "value_to_set": "true"
                  },
                  {
                    "name": "altsvc.oe",
                    "type": "preference",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "firefox_android": [
              {
                "version_added": "38"
              },
              {
                "version_added": "37",
                "version_removed": "38",
                "partial_implementation": true,
                "notes": "Only supports draft-04"
              },
              {
                "version_added": "35",
                "version_removed": "37",
                "partial_implementation": true,
                "notes": "Only supports draft-03",
                "flags": [
                  {
                    "name": "network.http.altsvc.enabled",
                    "type": "preference",
                    "value_to_set": "true"
                  },
                  {
                    "name": "altsvc.oe",
                    "type": "preference",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "ie": {
              "version_added": null
            },
            "opera": {
              "version_added": true
            },
            "opera_android": {
              "version_added": true
            },
            "safari": {
              "version_added": null
            },
            "safari_ios": {
              "version_added": null
            },
            "samsunginternet_android": {
              "version_added": true
            },
            "webview_android": {
              "version_added": true
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}