SharedArrayBuffer warnings in Search Console: Clarifying a new cross-origin isolation security policy

Android Chrome 88 and desktop Chrome 91, plus Firefox 79+ now implement SharedArrayBuffers again after Spectre caused a multiyear security blackout on the feature until new security requirements were in place.

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http://feeds.searchengineland.com/~r/searchengineland/~3/3X_nK58JLLg/sharedarraybuffer-warnings-in-search-console-clarifying-a-new-cross-origin-isolation-security-policy-346865