Log custom metrics for webalmanac

[max-ostapenko]

Now you can see custom metric logged by default from running unit tests with Web Almanac.

Applied formatting to privacy.js to trigger the 'changed custom metric' test.

---

Test websites:

• https://example.com/

[github-actions[bot]]

Custom metrics for https://almanac.httparchive.org/en/2022/

WPT test run results: http://webpagetest.httparchive.org/results.php?test=240616_Q8_6 Changed custom metrics values: ```json { "_privacy": { "privacy_wording_links": [ { "text": "\n Chapter 13: Privacy\n " }, { "text": "\n Chapter 13: Privacy\n " } ], "iab_tcf_v1": { "present": false, "data": null, "compliant_setup": null }, "iab_tcf_v2": { "present": false, "data": null, "compliant_setup": null }, "iab_usp": { "present": false, "privacy_string": null }, "navigator_doNotTrack": false, "navigator_globalPrivacyControl": true, "document_permissionsPolicy": false, "document_featurePolicy": true, "referrerPolicy": { "entire_document_policy": null, "individual_requests": null, "link_relations": null }, "media_devices": { "navigator_mediaDevices_enumerateDevices": false, "navigator_mediaDevices_getUserMedia": false, "navigator_mediaDevices_getDisplayMedia": false }, "geolocation": { "navigator_geolocation_getCurrentPosition": false, "navigator_geolocation_watchPosition": false }, "fingerprinting": { "counts": { "getimagedata": 2, "prefers-reduced-motion": 4, "resolvedoptions().timezone": 2, "gettimezoneoffset": 5, "devicememory": 5, "localstorage": 1 }, "likelyFingerprintingScripts": [ "https://almanac.httparchive.org/static/js/almanac.js?v=096e38f74c72532860651812978526c5", "https://almanac.httparchive.org/static/js/send-web-vitals.js?v=b7224f484fe762e075d4838286ddb066" ] }, "request_hostnames_with_cname": { "almanac.httparchive.org": [ "ghs.googlehosted.com" ] }, "ccpa_link": { "hasCCPALink": false, "CCPALinkPhrases": [] } } } ```

Custom metrics for https://example.com/

WPT test run results: http://webpagetest.httparchive.org/results.php?test=240616_T7_7 Changed custom metrics values: ```json { "_privacy": { "privacy_wording_links": [], "iab_tcf_v1": { "present": false, "data": null, "compliant_setup": null }, "iab_tcf_v2": { "present": false, "data": null, "compliant_setup": null }, "iab_usp": { "present": false, "privacy_string": null }, "navigator_doNotTrack": false, "navigator_globalPrivacyControl": false, "document_permissionsPolicy": false, "document_featurePolicy": false, "referrerPolicy": { "entire_document_policy": null, "individual_requests": null, "link_relations": null }, "media_devices": { "navigator_mediaDevices_enumerateDevices": false, "navigator_mediaDevices_getUserMedia": false, "navigator_mediaDevices_getDisplayMedia": false }, "geolocation": { "navigator_geolocation_getCurrentPosition": false, "navigator_geolocation_watchPosition": false }, "fingerprinting": { "counts": {}, "likelyFingerprintingScripts": [] }, "request_hostnames_with_cname": {}, "ccpa_link": { "hasCCPALink": false, "CCPALinkPhrases": [] } } } ```