AJAX :: PageMethods - Forms Authentication Cookie Not Always Sent?

Oct 26, 2010

Since last week I've had a really odd issue with PageMethods, the forms authentication cookie, and the back button which i've never seen before.

Essentially, I have a 'home page' which on document.ready (using jQuery), loads some data through PageMethods, and then renders a list - from which you can click through to a details page about the item. In general use, it works fine. However, using the back button after clicking through (ie: going back to the home page), it throws a PageMethods error. The browser's 'authentication required' prompt appears, and if you click cancel, the server returns a 401. The error returned by PageMethods on the client side is 'authentication failed'.

After inspecting the request in Fiddler, the forms authentication cookie isn't sent with the request, which would explain why it is happening. My fiddler entry for the request looks like this:

[Code]....

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