I am developing a JavaScript program that uses XMLHttpRequest to fetch an XML file from my Apache server. It all works splendidly, but changes to my XML file that I make externally are not reflected in my test page until I Quit and ReLaunch Firefox. Is there another way to get an XMLHttpRequest to re-read the file off the server? Changes to my javaScript program, or the HTML that carries it, are reflected quickly when I simply click on the Refresh icon at the right end of the URL bar. (I think I may have set something in Preferences to get this effect.) However, any changes I make with a text editor to the XML file on the server that the program is fetching don't show up right away. I have to Quit and ReLaunch Firefox to get those changes to show up. Evidently, the XMLHttpRequest mechanism must be caching the file somewhere. This isn't a terrible idea, as the file is rather large, but it is annoying whilst developing. Is there a way to mitigate this caching? --Gil