Web IDE is not working after updating gitlab to 16.8.3

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Problem to solve

I have updated my GitLab environment to new version 16.8.3 and after the successful update Web IDE is not working and throwing error refused to connect.

Steps to reproduce

  1. Select any project.
  2. Click on file which we want to edit.
  3. Click on Edit, Open with Web IDE option.
  4. Throws error refused to connect.

Error

Versions

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