How to force a web browser to cache Images
browser, caching, http, response
Solution
A Last-Modified and Expires header might also be useful additions.
Your server should also check for requests featuring an If-Modified-Since header, and return a 304 Not Modified response if possible to speed things along.
Problem
I am writing a small application which serves images from the local computer, so they can be accessed as http://localhost:12345/something/something (which returns a jpeg). How can I force the browser to cache this, so only a single request would be sent to the server. Would this header be sufficient ``` HTTP/1.1 200 OK Cache-Control: public, max-age=99936000 Content-Length: 123456 Content-Type: image/jpeg ``` This seems to work with Firefox 3.x but would it be sufficient globally for other browser as well?