Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

Attachment section not populating on Internet Explorer 11



The Pega-provided Attachment control does not work in Internet Explorer 11 in the user portal. When a user tries to attach a file using Attach File option, the Attachment section is not displayed properly. The window pops up but is not populated, except in compatibility mode.

Error Messages

Not Applicable 

Steps to Reproduce

Prerequisites to reproduce behaviour 
  1. In the PRPC 6.3 SP1 environment, install HFix-8246 and HFix-9161.
  2. Create a flow that can be launched in the Pega-provided user portal. 

Steps to reproduce 

  1. Click the Audit link on a work object item.
  2. From the Add button, select Attach a File option. 

The modal dialog opens but does not display the Drag and Drop control or the Browse control to select a file option. It just displays the OK and Cancel buttons.

Root Cause

This issue is caused by the BrowserIsIE When rule, which recognizes Internet Explorer with the header "User-Agent" with a MSIE token. In Internet Explorer 11, this was removed from Microsoft and not supported.


Perform the following local-change:

1. In Data-WorkAttach-File class, create a When rule that evaluates the following expression to true.

    @contains(@pyGetUserAgent(tools), "Trident")


2. Override the AttachingScreen section present in Data-WorkAttach-File class and add another visible OR condition similar to this example:

Published May 11, 2016 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us