cache-invalidation

How to force browsers to reload cached CSS and JS files?

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This solution is written in PHP, but it should be easily adapted to other languages. The original .htaccess regex can cause problems with files like json-1.3.js. The solution is to only rewrite if there are exactly 10 digits at the end. (Because 10 digits covers all timestamps from 9/9/2001 to 11/20/2286.) First, we use the … Read more