Topic awaiting preservation: Force Cache Drop

Is there a way to force no-cache explicitly with javascript (not using meta tags)? I'm having trouble with xml objects staying around too long and not refreshing, especially when I make changes on the server-side, they are not always reflected to the client right away.

Karl..

Are the XML files you request generated as real files, or are they always (re)generated by a server side script on every request ?

Anyway, you could use a little server side script to force/set the cache and last-Modified date HTTP headers when an XML stream is requested on your server.

I use the xmlhttp request to retrieve my xml source from an asp page which returns xml. I also use the xmlhttp request to retrieve my stylesheet, but i point explicitly at the stylesheet (I guess I could point at an asp page to return the stylesheet and then I might have control of the caching this way - is this your idea?).

Karl

yep that's my idea

So far (in the past) the best way I have seen to *trick* the browser into not caching is by throwing a random querystring val in get. Do you have any other suggestions?

No other suggestion.

Adding a random querystring is THE ultimate solution to avoid the problems of cache.

agree!

poi recommended that solution to me in the past, and i use it successfully all over my site now.

The only ~grumble~ I have with this solution, is that it clutters up the logs a bit..