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Support Article

Expand/Collapse icon working in Chrome but not in IE



When opening a windows on click of a link, the Expand or Collapse button does not expand the textarea box in the Internet Explorer browser. This occurs after updating to Pega 7.2.2.

Error Messages

Unable to get property 'getattribute' of undefined or null reference

Steps to Reproduce

  1. Update Pega 7.1.8 to Pega  7.2.2. 
  2. Add a link with on click Open URL in Window using the out-of-the-box ListEditor activity and out-of-the-box ListEditorDisplay stream rule.
  3. Launch the portal and click the link. Data table instance ListEditor section opens in a new window.
  4. Click the Expand or Collapse icon in the textarea field.

Root Cause

A software use or operation error.

DataTable ListEditor used Internet Explorer 5 compatibility (quirks mode) support for backward compatibility. Few JavaScript APIs (Pega7 standard) do not work as expected in the Internet Explorer 5 compatibility mode. As a result, script errors occur in IE only. For more information, refer to the article for End of Support of Internet Explorer quirks mode:


Here’s the explanation for the reported behavior: 

Open Designer Studio > Data Model > Data Tables

Data Tables are replaced by the new local data storage format.
Click 'Convert' on each data table to convert them to the new format.

To create storage for a new data type, navigate to the Data Explorer.

Published October 14, 2018 - Updated October 8, 2020

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