Wednesday, May 13, 2009

IE Developer Toolbar Follow-Up

In an earlier post, I had commented on the fact that the IE Developer Toolbar has a problem in that it doesn't report cookies that are marked with the "HttpOnly" attribute. Well, as they said in the movie Independence Day, that's not entirely accurate (clip). There is an exception. The exception is when the cookie is a persistent cookie. The tool apparently doesn't utilize JavaScript in that case, and correctly reports the existence of the cookie. It's not actually a situation that would occur very often. Applications normally only need to mark *sensitive* cookies with HttpOnly, and sensitive cookies should not be persistent in the first place.

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