What does this random number do: /javascripts/rails.js?1271798101

Posted by viatropos on Stack Overflow See other posts from Stack Overflow or by viatropos
Published on 2010-04-20T21:53:18Z Indexed on 2010/04/20 22:03 UTC
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ruby-on-rails

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html

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tags

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caching

I think I remember reading that that has to do with telling the browser not to cache it or something. How does this impact browser caching and application performance in production? When does that number change?

<script src="/javascripts/rails.js?1271798101" type="text/javascript"></script>

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