Are the .js files being cached?

Question

I recently made a website and I made a change to a .js file, but when I delete the .js file from the FTP server and upload the new one, the new file doesn\'t show up on the

Answer 1

Use an incognito instance of chrome (ctrl+shift+n) to check the source, this mode won't use any cached files. With this you can check if your file is being cached on the client side.

If it's on the client side make sure your server is not sending cache-control headers along with the JS file.

If it's on the server then there's a ton of possibilities, maybe you have a reverse proxy, a physical load-balancer or some other type of caching mechanism.

Edit (question changed):

Use this chrome extension to check the headers being sent along with your .js files. There's probably a cache-control header set that instructs chrome to cache the resource.

If you're on apache you can override this behaviour using an .htaccess file.