Javascript reusable images caching?

Question

Is it possible to avoid asking server for 304 header for reusable images via jQuery or clean javascript?

Thanks ;)

Answer 1

The HTTP image caching is done between webserver and webbrowser. You won't be able to influence it with JavaScript, as the expiration/modification headers are HTTP headers, which will be handled by the browser, and not passed to JavaScript.

Answer 2

You could try saving the images as javascript objects, ie.

var image = new Image();
image.src = "/test.png";

You can inject this object in the DOM as many times as you want and it will only request the image once.