Posted by Neil Crosby on July 1, 2006 08:00 AM
People who know me well will tell you that I have a deep-felt aversion to Norton Internet Security. I’ve previously had to look after a small network of home PCs that had it installed on some of them, and boy it was hell to look after.
At work on thursday I was contacted by a user of one of the web applications that I have developed with an interesting problem. She had just bought a new computer, and she was having trouble with the features of the site which used AJAX. Looking at my logs showed that none of the XmlHttpRequests which should have been being made were reaching the server.
So, what was the problem? She was using the same version of Firefox as she always had been, on the same Operating System, with the same ISP. The only logical explanation was that an overzealous firewall was blocking the requests before they left her PC. As I’m sure you’ve guessed by now, Norton Internet Security was the culprit.
Unfortunately, it seems like the solution to the problem is one that the user has to apply themselves. Thankfully, the gmail help pages contain a nice, easy to understand set of instructions for removing Norton Internet Security’s ability to block XmlHttpRequests. There are also instructions for users of other firewall software.
(No doubt the adverts below this entry will be trying to shove Norton Internet Security down your throats now. In case you haven’t guessed by now, I really don’t like the software, and I don’t think you should use it.)
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