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Support Article

Cross Domain Error On launch of Harness



Pega Web Mashup has a Portal Type harness. A header menu item controls the navigation to each tab. However, Access denied or Cross Origin errors occur and user is unable to launch different harnesses using Ajax or Dynamic containers.

Error Messages

0: Access is denied. pzpega_ui_harnesscontext_1639437542!pzevalharnessjson_11274272984.js!pzpega_ui_lib_provider_1192545302!pega_yui_13027834416!desktopwrapper_13441957966!pzautomationscripts_1782369863!pzpega_ui_jquery_11946158806!pega_ui_harness_1596074768!pzpega_ui_harness_actions_12323798486!pzpega_ui_crc32_1193200667!pzpega_ui_messaging_1847971439!pzpega_ui_jstree_1221119030!pzpega_ui_inspector_bundle_12606050251!pzpega_web_mashup_11908213432!!.js (1533,193)

DOMException: Blocked a frame with origin "xxxxxxxx" from accessing a cross-origin frame.
    at Object.T [as getPortalWindow]

Steps to Reproduce

  1. Launch the Pega Web Mashup. Verify the Browser Console for errors.
  2. Open the Account tab within the Mashup.
  3. Click the Edit link. Verify the Browser Console for errors.

Root Cause

A defect in Pegasystems’ code or rules.

pz_pega_ui_automation_scripts should not load on the Mashup and the AjaxContainer document.


This feature is implemented in Pega Platform 8.2.6.

Published March 19, 2020 - Updated December 2, 2021

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