Does myjsfile.js add? 2342343 application causing the browser to receive a new .js file?

Question

Does myjsfile.js add? 2342343 application that forces the browser to receive a new .js file?

Answer 1

It depends on the caching headers you send with it. Without headers Cache-Controlor Expiressome browsers (e.g. IE) will process URLs as always outdated, but this behavior is not guaranteed. On the other hand, if valid caching directives exist, browsers will respect them.