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Support Article

Empty captcha prompt on enabling OOTB captcha security feature



On enabiling the default out-of-the-box captcha security feature, empty captcha prompt displays intermittently.

Error Messages

Not Applicable

Steps to Reproduce

  1. Configure the Security policy settings for captcha.
  2. Log in to any Pega 7.2.2 system.
  3. Shut down the system.
  4. Restart the system.
  5. Refresh the previously logged in session.

Root Cause

A defect in Pegasystems’ code or rules.
During a node crash, redirect occurs instead of a call to Code-Security.pyGenerateCaptcha activity. Hence, node crash activity is invoked each time.


Apply HFix-48877.

Note: The hotfix only works if the Captcha on initial login is disabled in Security Policies.

Published December 26, 2018 - Updated October 8, 2020

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