html - Force browser cache clearance across all browsers -


i have following code on (all html webpages) : 

  <meta http-equiv="cache-control" content="max-age=0" />   <meta http-equiv="cache-control" content="no-cache" />   <meta http-equiv="expires" content="0" />   <meta http-equiv="expires" content="tue, 01 jan 1980 1:00:00 gmt" />   <meta http-equiv="pragma" content="no-cache" />

however, not clearing caches , code updates not showing up. there way accomplish cache refresh?

it better use standard http headers control caching server side, rather using http-equiv meta tags in html. allows controlling proxy caching , other intermediaries, making lot more effective. meta tags don't if have external css , js files. these still cached, may explain why isn't working correctly you. have append randomly generated query string resource paths browser appears loading brand new resource every time.

the http-equiv values above not in html 5 specification, not valid. can read more on using http headers correctly in useful caching guide.


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