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Support Article

Forbidden Error while trying to add a case type



While using the Case Type Explorer, you observe errors while attempting to view context based help and the screen hangs while trying to change the radio button selection.

Error Messages

403 Forbidden

Steps to Reproduce

1. Right Click on a case type and click Add.
2. Select the Radio button for Existing case type.
3. Hover over the "?" icon for the context based help.

Root Cause

The root cause of this problem is defect/misconfiguration in the operating environment. The environment was configured to use SiteMinder with CSSChecking enabled, which checks URLs for certain characters to avoid cross-site scripting. If those characters are detected, a HTTP 403 Access Forbidden error is returned. As Pega Platform uses some of the default CSSChecking restricted characters within it's URLs, some functionality do not function correctly when using SiteMinder with CSSChecking enabled.


This issue is resolved by disabling CSSChecking in SiteMinder.

Published June 30, 2015 - Updated October 8, 2020

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