How do I get rid of the "Disallowed Key Characters" error?

When I try to search something on the library website, I get a blank screen with the words "Disallowed Key Characters"


We believe we have fixed the issue that caused the error message of "disallowed key characters" to appear when searching from the library homepage.

If you see this error again

Clear your browser cookies and try to search again.  Alternatively, open a private/incognito window and resume searching.

If clearing the browser cookies does not resolve the issue, help us troubleshoot by sending an email to utl-catalogue(at) with as much of the following information as you can:

If you're stuck, try searching the library catalogue directly or an individual database instead of our main search.  We can help you find the best alternative for your specific research needs.

Can't find what you're looking for?  Contact us.