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Editorial Team
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Asked: 2026-05-20T10:43:54+00:00

I have two types of JavaScript files. One contains static code and the other

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I have two types of JavaScript files. One contains static code and the other contains dynamic code which changes from session to session.

The static JavaScript file should be cached whereas the dynamic one should be cached only for that session and then reloaded In next session. The dynamic JavaScript file is generated once per session and I would like the client browser to cache it for the remainder of session.

How do I force the client browser to request a JavaScript file every session? I know that a common practice is to append a request parameter containing a version number, but one can make only so many updates to a file so that you can manually update JavaScript references. You can’t really do that with sessions since there can be multiple sessions per day.

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1 Answer

  1. Editorial Team

    Could you append the session id to the JavaScript URL? Assuming you’re using JSP, it would look kind of like this:

    <script src="/script.js?session=<%= // code to get the session ID %>"></script>

    I don’t know much about JSP, so I can’t help with the specifics, but that should give you a single, unique URL for the session.

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