Possible changes to grading
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06-24-2011, 12:03 AM
(This post was last modified: 06-24-2011 12:04 AM by aaronpeters.)
Post: #5
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RE: Possible changes to grading
Another thing Pat re: the JS/CSS combine.
If the browser is using the 6 connections to fetch CSS and JS files, it cannot fetch other assets. That is another reason to do combining. - 1x JS - 1x CSS those start loading while HTML is coming in Browsers have 3 connections left for fetching other assets, probably images. Once HTML is in - and JS and CSS stil loading - another connection is available for fetching a resource. But .... you may not always want to combine all CSS and all JS into one file, *especially* if you are putting that big JS file in the HEAD. Re: the JS files at top of BODY ... I've seen the grade not being F often, so probably those JS files were high up in the BODY but bot blocking rendering entirely. From what I remember, nothing really was rendered, so the UX was bad, but yeah ... WPT can't know that. Now how to create a good rule for this? BTW, I totally agree on this: "The grades have always been the "these ALWAYS apply and fix these before you even consider looking at anything else" issues and I think the JS/CSS combining is losing some of that certainty." |
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