MathType LTI shows a refused to connect error in the RCE in New Quizzes


This behavior has been resolved and deployed to the production environment as of 5/22/24.


When trying to add MathType LTI content to New quizzes via the RCE it throws a Refused to connect error after entering the equation.

Expected Behavior

MathType LTI should work in New quizzes.


No workaround exists at this time.

Steps to Reproduce

Prerequisite: Have a course with the MathType LTI enabled.

  1. Create a New Quiz.

  2. Add a question.

  3. In the RCE select the MathType LTI.

  4. Enter an equation and click on OK to add the equation to the editor.

  5. Observe the Refused to connect message in the modal.

Additional Info


Known issues indicate notable behaviors that have been escalated to the Canvas engineering team. Known issues are not a guarantee for an immediate resolution. This document is for informational purposes only and does not replace the Support process. If you are encountering the behavior outlined in this document, please ensure you have submitted a Support case (per your institution's escalation process) so Canvas Support can adequately gauge the overall customer impact and prioritize appropriately.

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