{ "http": { "headers": { "Sec-GPC": { "__compat": { "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Reference/Headers/Sec-GPC", "spec_url": "https://w3c.github.io/gpc/#the-sec-gpc-header-field-for-http-requests", "tags": [ "web-features:gpc" ], "support": { "chrome": { "version_added": false }, "chrome_android": "mirror", "edge": "mirror", "firefox": { "version_added": "120", "notes": "Opt-in to GPC using the Website Privacy Preference setting (`about:preferences#privacy`) checkbox 'Tell websites not to sell or share my data', or by setting the preference `privacy.globalprivacycontrol.enabled` to `true`." }, "firefox_android": { "version_added": "122", "notes": "Opt-in to GPC using the Enhanced Tracking Protection toggle 'Tell web sites not to share & sell data', or by setting the preference `privacy.globalprivacycontrol.enabled` to `true`." }, "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": false, "standard_track": true, "deprecated": false } } } } } }