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 with a non-200 HTTP status code."
The changes include adding the words "with a 200 HTTP status code" to this line "Googlebot queues all pages with a 200 HTTP status code for rendering."
Google also added this new note, that says:
All pages with a 200 HTTP status code are sent to the rendering queue, no matter whether JavaScript is present on the page. If the HTTP status code is non-200 (for example, on error pages with 404 status code), rendering might be skipped.
Here is a screenshot of the section of the page that was updated:
Google also updated its JavaScript canonical advice and noindex tag advice this week.
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