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Support Article

New browser tab opens when using MSOFileUploadHTML rule



A new browser tab opens when using the MSOFileUploadHTML rule. This occurs after upgrading to Pega 7.4.

Error Messages

Not Applicable.

Steps to Reproduce

  1. Upgrade from PRPC 6.3 to Pega 7.4
  2. Create a button in a section and configure run script as an action
  3. Use the MSODisplayFileUploadHTML rule and run the flow

Root Cause

A defect in Pegasystems’ code or rules.

The target is populated incorrectly, and the parameter is not generated correctly. As a result, it is generating a new thread and opening a new tab in the browser.


Perform the following local-change: 
  1. Open the MSOFileUploadHTML rule and comment the 80th line:
  2. Save the rule in the application ruleset



Published April 5, 2019 - Updated December 2, 2021

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