I notice the following two errors in the console on Beta Cluster after logging-in.
(IMPORTANT)```counterexample
Access to XMLHttpRequest at `https://login[Report Only] Refused to load the image 'https://en.wikisource.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start?type=1x1&from=enwiki' because it violates the following Content Security Policy directive: "default-src 'self' data: blob: https://upload.beta.wmflabs.org upload.beta.wmflabs.org https://commons.wikimedia.beta.wmflabs.org/wiki/Special:CentralAutoLogin/refreshCookies?type=1x1&wikiid=enwiki&proto=org https://upload.wikimedia.org https` from origin `https://en://commons.wikimedia.org meta.wikipmedia.beta.wmflabs.org` has been blocked by CORS policy: No `Access-Control-Allow-Origin` header is present on the requested resource *.wikimedia.org *.wikipedia.org *.wikinews.org *.wiktionary.org *.wikibooks.org *.wikiversity.org *.wikisource.org wikisource.org *.wikiquote.org *.wikidata.org *.wikivoyage.org *.mediawiki.org wikimedia.org". Note that 'img-src' was not explicitly set, so 'default-src' is used as a fallback.
(IMPORTANT)Main_Page:147 [Report Only] Refused to load the image 'https://en.wikibooks.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start?type=1x1&from=enwiki' because it violates the following Content Security Policy directive: "default-src 'self' data: blob: https://upload.beta.wmflabs.org upload.beta.wmflabs.org https://commons.wikimedia.beta.wmflabs.org https://upload.wikimedia.org https://commons.wikimedia.org meta.wikimedia.beta.wmflabs.org *.wikimedia.org *.wikipedia.org *.wikinews.org *.wiktionary.org *.wikibooks.org *.wikiversity.org *.wikisource.org wikisource.org *.wikiquote.org *.wikidata.org *.wikivoyage.org *.mediawiki.org wikimedia.org". Note that 'img-src' was not explicitly set, so 'default-src' is used as a fallback.
Main_Page:147 [Report Only] Refused to load the image 'https://en.wikiversity.beta.wmflabs.org/wiki/Special:CentralAutoLogin/start?type=1x1&from=enwiki' because it violates the following Content Security Policy directive: "default-src 'self' data: blob: https://upload.beta.wmflabs.org upload.beta.wmflabs.org https://commons.wikimedia.beta.wmflabs.org https://upload.wikimedia.org https://commons.wikimedia.org meta.wikimedia.beta.wmflabs.org *.wikimedia.org *.wikipedia.org *.wikinews.org *.wiktionary.org *.wikibooks.org *.wikiversity.org *.wikisource.org wikisource.org *.wikiquote.org *.wikidata.org *.wikivoyage.org *.mediawiki.org wikimedia.org". Note that 'img-src' was not explicitly set, so 'default-src' is used as a fallback.
```
These errors are repeated 55 times in total. For each of the entry points CA tries to hit:
Special:CentralAutoLogin/start,
Special:CentralAutoLogin/checkLoggedIn
Special:CentralAutoLogin/createSession
Special:CentralAutoLogin/validateSession
login.wikimedia.beta.wmflabs.org..:1 Failed to load resource: net::ERR_FAILEDSpecial:CentralAutoLogin/setCookies
The errors are repeated several times forMultiplied by the various project domains in the wiki farm (number of wikidata, wikibooks, etc.) projects.