Okay, it seems that I’ve found the reasons and the solution.
I’m sharing it here so that anyone with the same issue may find the help needed.
The problem was the plugin: WP Fastest Cache
I went to the preferences for the plugin and in the tab “Ausschließen” (exclude?) I added at the bottom for JS a new rule with “Contains: real-queue/v1”
Since I added this little thing, I did not get any error messages anymore.
If it’ll come back again, I’ll keep you informed. But for now I guess my problem is solved. Thanks a lot!
Thanks a lot for reaching out to me!
I did not see your message until today.
I guess the problem is that I don’t know exactly what triggers the warning message. But I will have a closer look so that I can find the problem.
If you have any hints, I would highly appreciate it.
I will check in again as soon as I have more insights. Thanks again!
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This reply was modified 3 years, 6 months ago by AstridW.