Which browsers have problems caching XMLHTTPRequest responses?

Question

Do any of the currently popular browsers have particular problems caching* XMLHttpRequest responses that I need to be aware of?

I\'d like to be able to include XMLHt

Answer 1

Mark Nottingham has an excellent set of functional tests that demonstrate browser XMLHttpRequest caching behaviour. Load up the page in the browsers you want to support and work out what techniques you can and cannot rely on to have your response cached.