People can spend hours preparing a text for submission through Moodle, only to receive the error message "incorrect sesskey", often through user error or timeout. The input text appears to be completely wiped by the error page.
This text needs to be protected and recoverable.
How about the error message appearing in a new tab? So leaving the text to be recoverable by cut and paste from the other tab.

PS 2.4 is the latest version that my service provider provides. I have put in 2.5.7 since that is the only way that this dialogue box will accept my comment