How Long Are Js Files Cached

If the user is very active using the browser, the length of time that the cache is stored can be extended to 10 minutes or less.

How long do files stay in cache?

If a user stops using the browser it is indefinitely. If he/she uses the browser rarely, it will be until the expiration – either by internal policy or by HTTP headers. If he/she uses the browser heavily, it can be 12 minutes or even less.

Does Chrome cache JS files?

When a JS file is first requested (i.e. a cold run), Chrome downloads it and gives it to V8 to compile. It also stores the file in the browser’s on-disk cache. When the JS file is requested a second time (i.e. a warm run), Chrome takes the file from the browser cache and once again gives it to V8 to compile.