I've written a Tracker app that is used as a Bug Reporting system.
If any text fields in the tracker contain the < > pointy brackets (greater than, less than symbols) characters, upon pressing the SUBMIT button the screen goes blank and the user is greeted with a "No Route Found. Please see http://dev.tiki.org/url+Rewriting+Revamp" message. (?) The user's session is over and all their entered data is lost.
When they complain, I tell them to re-enter their bug report in the Tracker but avoid using those two symbols... and everything works fine.
This error occurs on an ISP hosted server. When debugging locally on an ubuntu box it works fine. Has anyone seen anything like this?