Html editor, where?

where’s html editor ? it was grate everytime , because i used ckeditor. it worked always. i know that i didnt update phplist for the latest version, but its not a reason, why ckeditor just stop work. help plz


I have the same problem today. By activating the code inspector of Mozilla Firefox, it tells me a javascript error of type: X-Content-Type-Options

@AlainR What is the location of ckeditor entered on the Settings page

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I don’t have a problem using Firefox 99.0.1, this is the header that you mentioned

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@duncanc //cdn.ckeditor.com/4.10.1/full/ckeditor.js

Last night, editor was back. I don’t understand what happened. I tried 3 different computers (always Firefox, Linux & Windows) and different connections (with and without firewall, etc.)
Today, everything is OK and I have no more JS mistakes.