I'm not sure adding HTTP headers will do the trick. If Wicket Ajax is modifying the URL of the IMG SRC, but the URL is exactly the same as before the AJAX request, will the browser even bother to reload it?


Igor Vaynberg wrote:
well, this image is a resource that you are generating right? so, you are streaming it and you are free to add any anti caching headers to it.

-Igor


On 4/3/06, * Ray Cromwell* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    Ray Cromwell wrote:
     > Igor Vaynberg wrote:
     >
     >> i think this is indeed an image caching issue and ajax cannot
     >> forcefully reload the image because all ajax does is update the <img
     >> src="foo"/> tag. give the random number idea a try, easy enough
    and i
     >> used it myself a couple of times to great results.
     >>
     >
     > I'm new to wicket, so what's the best way to add a random string
    to the
     > URL generated by Image when it is rendered?

    Igor, any suggestions? BTW, should this be something that Wicket does
    automagically? Either by having the JavaScript force a reload if image
    resources or others are modified, or by adding anti-caching strings to
    the automatically generated SRC urls?

    -Ray



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