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Does Firefox cache JavaScript?
As long as the app hasn’t changed, the tag will stay the same and therefore the query string will also. The browser should cache the JS and not do a network request at all because the expire date is far future. Each time the app is updated, that query string will change and the browser should download it.
Why JS is not cached?
It is not recommended to cache resources with a query string. A query string usually represents a dynamic resource. However IE and Chrome do cache based off the Cache-Control and Expires headers. Firefox should cache, however, this could be due to a weak validation i.e. no usage of Etag.
Do browser’s cache JavaScript files?
In general, most modern browsers will cache JavaScript files. This is standard practice for modern browsers and ensures an optimized loading experience. Cached assets such as JavaScript will typically be served from the browser’s cache instead of making another request for a resource that has already been retrieved.
Can we clear browser cache using JavaScript?
Unlike mobile applications, a web browser doesn’t allow to clear its cache memory. Though we cannot clear all cache of the client browser it is still possible to load the webpage without caching by using meta tags in the HTML code.
What to do if you cant clear cache in Firefox?
I suggest opening the console BEFORE trying to clear cache. You can do that using either: After it opens, click the Clear button along its top bar to declutter the console and either minimize the window or switch back over to your Preferences page.
Why does Firefox not cache a query string?
A query string usually represents a dynamic resource. However IE and Chrome do cache based off the Cache-Control and Expires headers. Firefox should cache, however, this could be due to a weak validation i.e. no usage of Etag. Using Etag forces strong validation of the cache-control mechanism for Firefox.
Why is my JavaScript not updating the cache?
A little late to the party, but if you put this in your html, it will keep your website from updating the cache. It takes the website a little longer to load, but for debugging purposes i like it. Taken from this answer: How to programmatically empty browser cache?
Why is my JavaScript file not updating in chrome?
In both Firefox and Chrome, that is really annoying, but because of their default settings which can be changed the following way and then they work. I tried in Chrome and Firefox both with same order of steps.