Are you receiving the following message when searching websites or opening documents in Mosaic:

Bad Request:

​​​​​​​"Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit."

Caching issue in web browser

Clearing the cache in your web browser should fix this issue.  Instructions can be found in the following article:

•  Clear the cache in web browsers

• https://uts.mcmaster.ca/services/administration-systems/mosaic/mosaic-students/

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Phone: (905) 525-9140 x 23355