State Information Is Invalid for This Page Error Occurs

Environment

Product

Progress® Telerik® UI for ASP.NET AJAX AjaxManager

Progress® Telerik® UI for ASP.NET AJAX AjaxPanel

Description

A The state information is invalid for this page and might be corrupted error occurs.

Cause

Firefox version 1.5 and later use in-memory caching for entire web pages, including their JavaScript states, for a single browser session. Going backward and forward between visited pages requires no page loading and the JavaScript states are preserved. This feature, referred to by some as bfcache (for "Back-Forward Cache"), makes page navigation very fast. The caching state is preserved until the user closes the browser.

Solution

To work around this issue, refer to the article on using Ajax, ViewState, and Firefox.