{
  "http": {
    "headers": {
      "RTT": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/RTT",
          "spec_url": "https://wicg.github.io/netinfo/#rtt-request-header-field",
          "tags": [
            "web-features:network-information"
          ],
          "support": {
            "chrome": {
              "version_added": "67",
              "notes": "The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure."
            },
            "chrome_android": "mirror",
            "edge": {
              "version_added": "≤79",
              "notes": "The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure."
            },
            "firefox": {
              "version_added": false
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}