{ "http": { "headers": { "Origin": { "__compat": { "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Origin", "support": { "chrome": { "version_added": true }, "chrome_android": { "version_added": true }, "edge": { "version_added": "12", "notes": "Not sent with POST requests, see bug 10482384." }, "firefox": [ { "version_added": "70" }, { "version_added": "59", "flags": [ { "name": "network.http.sendOriginHeader", "type": "preference", "value_to_set": "true" } ], "notes": "Sent with non-CORS requests since Fx59, unless they are GET or HEAD." }, { "version_added": true, "partial_implementation": true, "notes": "Not sent with POST requests until Firefox 58, see bug 446344." } ], "firefox_android": [ { "version_added": "59", "flags": [ { "name": "network.http.sendOriginHeader", "type": "preference", "value_to_set": "true" } ], "notes": "Sent with non-CORS requests since Fx59, unless they are GET or HEAD." }, { "version_added": true, "partial_implementation": true, "notes": "Not sent with POST requests until Firefox 58, see bug 446344." } ], "ie": { "version_added": true }, "opera": { "version_added": true }, "opera_android": { "version_added": true }, "safari": { "version_added": true }, "safari_ios": { "version_added": true }, "samsunginternet_android": { "version_added": true }, "webview_android": { "version_added": true } }, "status": { "experimental": false, "standard_track": true, "deprecated": false } } } } } }