HTTP Response before Request

Question

My question might sound stupid, but I just wanted to be sure:

• Is it possible to send an HTTP response before having the request for that resource?

Answer 1

You'll get a better result by caching resources effectively, i.e. setting proper cache headers and configuring your web server for caching. You can also inline images using base 64 encoding, if that's a specific concern.

You can also look at long polling javascript solutions.