Is there a meta tag to turn off caching in all browsers

Question

I read that when you don t have access to the web server s headers you can turn off the cache using    lt meta http-equiv  Cache-Control  content  no-store    gt    But I also read that this doesn t work in some versions of IE   Are there any set of  lt meta gt  tags that will turn off cache in all browsers

User · Answer

Try using       lt META HTTP-EQUIV  Pragma  CONTENT  no-cache  gt       lt META HTTP-EQUIV  Expires  CONTENT  -1  gt

User · Answer

I noticed some caching issues with service calls when repeating the same service call  long polling   Adding metadata didn t help  One solution is to pass a timestamp to ensure ie thinks it s a different http service request  That worked for me  so adding a server side scripting code snippet to automatically update this tag wouldn t hurt    lt meta http-equiv  expires  content  timestamp  gt

User · Answer

For modern web browsers  After IE9   See the Duplicate listed at the top of the page for correct information   See answer here  How to control web page caching  across all browsers      For IE9 and before  Do not blindly copy paste this      The list is just examples of different techniques  it s not for direct   insertion  If copied  the second would overwrite the first and the   fourth would overwrite the third because of the http-equiv   declarations AND fail with the W3C validator  At most  one could have   one of each http-equiv declarations  pragma  cache-control and   expires  These are completely outdated when using modern up to date browsers    After IE9 anyway  Chrome and Firefox specifically does not work with these as you would expect  if at all     lt meta http-equiv  cache-control  content  max-age 0    gt   lt meta http-equiv  cache-control  content  no-cache    gt   lt meta http-equiv  expires  content  0    gt   lt meta http-equiv  expires  content  Tue  01 Jan 1980 1 00 00 GMT    gt   lt meta http-equiv  pragma  content  no-cache    gt    Actually do not use these at all      Caching headers are unreliable in meta elements  for one    any web proxies between the site and the user will completely ignore   them  You should always use a real HTTP header for headers such as   Cache-Control and Pragma

User · Answer

It doesn t work in IE5  but that s not a big issue   However  cacheing headers are unreliable in meta elements  for one  any web proxies between the site and the user will completely ignore them  You should always use a real HTTP header for headers such as Cache-Control and Pragma

User · Answer

pragma is your best bet    lt meta http-equiv  Pragma  content  no-cache  gt

User · Answer

This is a link to a great Case Study on the industry wide misunderstanding of controlling caches   http   securityevaluators com knowledge case studies caching    In summary  according to this article  only Cache-Control  no-store is recognized by Chrome  Firefox  and IE   IE recognizes other controls  but Chrome and Firefox do not

[html] Is there a <meta> tag to turn off caching in all browsers?

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