GitHub Writer error: ("markdown") not found error when trying to edit issue or comment

[dufipl]

📝 Provide detailed reproduction steps (if any)

GitHub Writer error: ("markdown") not found error when trying to edit issue or comment

1. Open any issue
2. Press on the 3 dots in the upper right corner and then press anywhere else

✔️ Expected result

No errors in the console.

❌ Actual result

https://github.com/ckeditor/github-writer/assets/32898551/cd6aa657-5a77-4643-a87f-1861d3dd2f9d

Error in the console:

Uncaught (in promise) Error: GitHub Writer error: ("markdown") not found. This page doesn't seem to be compatible with this application anymore. Upgrade to the latest version of the browser extension.
    at github-writer.js:6:882
    at Array.forEach (<anonymous>)
    at c (github-writer.js:6:840)
    at github-writer.js:6:939
    at Array.forEach (<anonymous>)
    at c (github-writer.js:6:840)
    at new yk (github-writer.js:5094:177)
    at new vk (github-writer.js:5103:4)
    at vk.createEditor (github-writer.js:5082:483)
    at window.requestIdleCallback.window.requestIdleCallback.timeout (github-writer.js:5082:179)

📃 Other details

• Browser: Both Chrome and Firefox
• OS: Mac

Might be connected with: #452

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[mlewand]

This actually might be similar to #443