How JavaScript works: the rendering engine and tips to optimize its performance https: ... If you build a rendering tree using the DOM tree and CSSOM tree, it will be as follows.

As such, sometimes Google will defer the rendering stage and come back to a page to render it at a later date. Most websites these days will use some JavaScript – that’s absolutely fine.

Google's web crawler simulates "idle" states to better render JavaScript-heavy sites, improving indexing of deferred content on webpages. Google's web crawler simulates "idle" states to trigger ...

Mozilla wants Firefox to render PDFs with HTML5, JavaScript By Emil Protalinski June 17, 2011, 2:42. Serving tech enthusiasts for over 25 years. TechSpot means tech analysis and advice you can trust.