What does the browser pre-loader do?Slides from talk at London Webstandards (Sept 2014) on what the browser preloader is, how it works and why we need itRead less
Script-injected "async scripts" considered harmful - igvita.com
By Ilya Grigorik on May 20, 2014 Synchronous scripts are bad because they force the browser to block DOM construction, fetch the script, and execute it before the browser can continue processing the rest of the page. This, of course, should not be news, and is the reason why we have been evangelizing the use of asynchronous scripts. Here is the canonical example: <!-- BAD: blocking external script
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