Clear cached javascript includes in FireFox?

In Firefox you can install a plugin called 'Web Developer Toolbar' which has a 'clear cache' option I think there's no way to do it programmatically but you coul give a hint to the browser using something like script type="text/javascript" src='js/my. Js? X.

In Firefox you can install a plugin called 'Web Developer Toolbar' which has a 'clear cache' option I think there's no way to do it programmatically but you coul give a hint to the browser using something like.

1 I sometimes use this too, when I want to all current users to get the new content. However, I recommend using filemtime('js/my. Js') instead of just random value.

– Thai Jan 12 at 16:09 I've found that the 'disable caching' option on Web Developer Toolbar works for me :) – user151841 Jan 12 at 16:51.

Browsers have user-facing facilities to clear the cache. Usually it's a menu option somewhere. You can't force the cache to be cleared.

What you can do is arrange for your scripts to be loaded from URLs that vary according to version number (or whatever): Now when you update the code, you update the pages that use it: That's a different URL, and it won't be in the cache.

A very popular technique is to use a querystring parameter. Could look like If you change this line into v=2 a browser will reload the script if it was cached before.

The web developer toolbar add-on has an option to let you disable caching. Firebug also does this. It is in the menu of the Net panel and is called Disable Browser Cache.To bypass cache for one time in Firefox: Click the reload button while holding the shift key.

Ctrl+F5 Ctrl+Shift+R or Cmd+Shift+R for other browsers Some web hosting services do cache the page server-side. When bypassing cache, web browsers will send a header to tell the server that it should not respond with the cached data.

Shift-reload often clears out caches more aggressively. However, you really don't want to rely on this. A good technique is to version the filenames of your external Javascript, and update the HTML that refers to them when you rev.

That way, you can rely on caching better as well (for example, setting cache headers to "public" in your webserver, and also specifying long Expires times).

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