Firefox 38.2.0 is caching when it should not

Posted on 2016-08-02
Medium Priority
Last Modified: 2016-11-01
Firefox is caching data when it should not be.  Any ideas what be going on?  The below code is not working and the page keeps getting pulled.  This works on both chrome and IE.

        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="cache-control" content="no-store">
        <meta http-equiv="Pragma" content="no-cache">
        <meta http-equiv="Expires" content="0">
Question by:The Dude
  • 2
LVL 84

Expert Comment

by:Dave Baldwin
ID: 41740034
Firefox does not do what you think it should.  https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FAQ  And IE and Chrome may not either.  If you can click on 'Back' and get the previous page without a trip to the server, then it is being retrieved from 'cache'.

In addition, 'meta' statements are not necessarily exact replacement for actual headers from the server.  Firefox does not list the statements you are trying to use for cache control as valid 'meta' statements.  https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta

Author Comment

by:The Dude
ID: 41742335
Hmmmm.. The problem is that we are trying to end a session via logout page.  

Do you think something like this would work?


LVL 84

Accepted Solution

Dave Baldwin earned 2000 total points
ID: 41743083
The problem is that we are trying to end a session via logout page.
I do that all the time without problems with caching.  The session is ended on the server so I'm not sure why you are having a problem in the browser.  What language are you using for your server code?

The 'cache headers' should be sent by the server and not with 'meta' statements, especially since Firefox does not appear to recognize them.  Other browsers will recognize the header sent by the server.

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