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CSS for Stack Overflow didn't load

Sometimes SO website is loaded only in HTML view like this:



I face this problem at least once a week! It does not happen due to my Internet Speed is low, because when this problem occur at that time the YouTube or Google-Image work fine.

marked as duplicate by Lix, animuson, Martijn Pieters, jonsca, Josh Darnell Jul 26 '12 at 15:51

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    Looks like the CSS files were not loaded correctly... A refresh of the page with CTRL+F5 should solve this... – Lix Jul 25 '12 at 6:45
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    It does not solve the problem even after refreshing too many times. But after few time (approx. 15-20 minutes) it load perfectly. – hims056 Jul 25 '12 at 6:47
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    Are you behind some sort of proxy? Are there some limitations in your office with regard to what sites you are allowed to view? This might also be causing problems... – Lix Jul 25 '12 at 6:51
  • No. There are no limitations in my office. May be this occur as per this answer. – hims056 Jul 25 '12 at 6:55
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    Some browsers have difficulties with refresh in that they don't reload all files. I distinctly remember Firefox doing this in the past: it never reloaded CSS files on Ctrl+F5, even if the files were changed on the server. And I had to clear the cache manually and hit Ctrl+F5 before the new CSS got loaded. Maybe that will help here? – Mr Lister Jul 25 '12 at 8:10
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    Also, @MrLister, I think some browsers might not really ignore the cache on Ctrl+F5 but merely ask the server if things have changed, where the server says 304 Not Modified. (Using If-Modified-Since or Etag headers; other browsers such as Chrome do that for a regular refresh). Also, on Stack Exchange sites many non-essential resources are loaded using script. It seems some (if not all) browsers tend to reload "regular" resources when using Ctrl+F5, but then still fall back to cached things when scripts start making request too. (See StackExchange.using.setCacheBreakers in the HTML.) – Arjan Jul 25 '12 at 9:49
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    And for Chrome: Chrome Forced Refresh does not ignore cache. – Arjan Jul 25 '12 at 9:50
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    As an aside, your (I'd say excessive) formatting is used as an example in meta.stackexchange.com/questions/141089/… – Arjan Jul 25 '12 at 14:47

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