Google made another change to the JavaScript SEO documentation help document to explain and clarify JavaScript execution on non-200 HTTP status codes.
The change. Google wrote, “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,” Google added.
Google also clarified that Googlebot queues all pages with a 200 HTTP status code for rendering.
Here is the section that was updated:
Google explained, “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.”
Other changes. Google made a number of changes to the JavaScript SEO documentation this week including:
Why we care. This means you should ensure these pages return a 200 status code so Google does not skip rendering them. If Google skips rendering, it will likely lead to poor ranking of that page in Google Search.
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