After upgrading to version 3.x of the module I noticed that the Drupal status report showed errors for the Codemirror and ckeditor5-source-editing-codemirror not being loaded, even though the library files were there and working fine.
Looking into the requirements more it seems https://git.drupalcode.org/project/ckeditor_codemirror/-/commit/f049d63 included a change that started requiring the package.json file for each library. This was the cause of the problem since during deployments we remove any package.json and package-lock.json files in order to help prevent supply chain attacks.
It appears the package.json files are only needed in order to show the exact version of the module installed, but the module itself does not need it in order to function.
Codemirror and ckeditor5-source-editing-codemirror libraries./admin/reports/status There should be no errors related to the module.package.json files in each library folder./admin/reports/status There should be 2 errors related to the module.Since the module's functionality doesn't require the package.json files it would be great if this wasn't a requirement. If they are available, showing the version is fine, but if not there should be a fallback value.
I'm happy to provide a MR with changes.
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Fixed
3.0
Code
Automatically closed - issue fixed for 2 weeks with no activity.