Google Warns Noindex Can Block JavaScript From Running

Google updated its JavaScript SEO documentation to clarify that noindex tags may prevent rendering and JavaScript execution, ...

Google Updates JavaScript SEO Docs With Canonical Advice

Google updated its JavaScript SEO docs with new guidance on canonical URLs for JavaScript-rendered pages. Keep canonicals ...

Google says don't use a noindex tag in the original page code

Google updated its JavaScript SEO basics documentation to clarify that may skip rendering and JavaScript execution.
Search Engine Roundtable

Report: Google Fixing Noindex Bug With Some JavaScript Pages

Google is reportedly working on fixing a bug with not being able to properly respond to a noindex directive on some JavaScript generated pages. This is happening for some React apps using Single Page ...

Google explains JavaScript execution on non-200 HTTP status codes

Google noted that if the HTTP status code is non-200 (for example, on error pages with 404 status code), rendering might be skipped.
Search Engine Land

You can now add custom JavaScript to AMP pages

Custom JavaScript can now be added to AMP pages, Google announced this week. The amp-script component can be used to enable user interactions, and to share code across AMP-enabled and non-AMP pages.
Search Engine Roundtable

Google: We Don't Track How Expensive It Is To Crawl, Render, Index & Serve Pages

We just have to render, to see it all. It doesn't really matter if a page does or does not use JavaScript, because we can only be reasonably sure to see all content once it's rendered," he wrote. So ...