Microsoft Authentication DOCTYPE error

I’ve been having multiple workflow failures on the KNIME server with the same error:

Execute failed: DOCTYPE is disallowed when the feature “” set to true.

Anyone encountered this before or knows the root cause?

The workflows will authenticate most of the time correctly so I don’t believe it’s a user access or password issue.


Is this behavior new?
When something new happens, the first question is usually, "what’s changed?

  • What version of KNIME server, Hub, and/or AP is being used?
  • Does the issue affect one user, multiple users, or all users?
  • Have there been any external changes to the environment that could explain the issue (e.g. configuration changes, new patch applied, etc.)

Thank you,

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