Google updated its JavaScript SEO documentation for the third time this week, this time to say that "while pages with a 200 HTTP status code are sent to rendering, this might not be the case for pages ...
Google has updated its JavaScript SEO help document to add a new section on how to properly inject canonical link tags using JavaScript. The document says Google does not recommend using JavaScript ...
Google noted that if the HTTP status code is non-200 (for example, on error pages with 404 status code), rendering might be skipped.
Google added a section on canonicalization best practices for JavaScript to the JavaScript SEO best practices document.