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    <p>The meta tags are not sufficient. You need to add them as fullworthy response headers. The webbrowser relies on them. A <code>Filter</code> is helpful in this. Also, the <code>Cache-Control</code> header is incomplete (won't work as expected in Firefox, among others).</p> <p>Implement this in the <code>doFilter()</code> method of a <code>Filter</code> which is mapped on an <code>url-pattern</code> of for example <code>*.jsp</code> (if you want to cover all JSP pages).</p> <pre><code>HttpServletResponse res = (HttpServletResponse) response; res.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1. res.setHeader("Pragma", "no-cache"); // HTTP 1.0. res.setDateHeader("Expires", 0); // Proxies. chain.doFilter(request, response); </code></pre> <p>This way the webbrowser will be forced to fire a real request on the server rather than displaying the page from the browser cache. Also, you should rather be using a <code>Filter</code> to check the presence of the logged-in user, not JSP/JSTL.</p> <h3>Related questions:</h3> <ul> <li><a href="https://stackoverflow.com/questions/49547/making-sure-a-web-page-is-not-cached-across-all-browsers">Making sure a page is not cached, across all browsers</a></li> <li><a href="https://stackoverflow.com/questions/3149727/xhtml-pages-and-httpsession-test-no-jstl">Checking if an user is logged in</a></li> <li><a href="https://stackoverflow.com/questions/1945377/authenticating-the-username-password-by-using-filters-in-java-contacting-with-d">Authenticating the user using filters</a></li> </ul>
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    1. POHow to properly invalidate JSP session?
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    1. COThanks, worked like a charm.
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    2. COYou're welcome. Don't forget to mark the most helpful answer accepted. See also http://stackoverflow.com/faq.
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