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Support Article

Users are not able to perform any action after login



After installing Microsoft Internet Explorer 11 security patch (MS KB articles - 3197867, 3197868), users are able to login to Internet Application Composer (IAC) Application, however, application is not allowing to them access features within the application to move further.

Error Messages

Console shows 'Access denied'.

Steps to Reproduce

Log into IAC.

Root Cause

A third-party product issue.
Microsoft released the November security patch(
MS KB articles - 3197867, 3197868) which closes some security gaps. 


Pega advocates the use of same origin domain policy to avoid running into the error reported.

Details of the same origin policy can be found here :

User should redesign his configuration to adhere to this policy.

Published January 11, 2017 - Updated October 8, 2020

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