There is a problem with CodeMirror and textarea windows.
I just upgraded to LTS 1.642.3 this weekend and getting a little rubbing from my comrades about how long the configure load times are.
I have one 2x4 Matrix multi-step job with conditionals that have shell, python, and windows batch executes. The configure page for this job generates 8-10 timeouts in codemirror.js and takes minutes to load.
Common timeouts are on lines 1247, 1207, 853
These deal with the gutter and scrollbar as far as I can tell.
I've spent Saturday trying everything I can to somehow just DISABLE codemirror. But since it's core, not a plugin, and there's no exposed configuration for it, I'm pretty much stuck with it's behavior. Is it possible to turn it off?
The setting in security for syntax highlighting is not related, the number of builds or history is not related. This is purely codemirror barfing on complex jobs with recursive textareas.
I'm surprised codemirror is not a tag/label on this ticket.
I am creating a sanitized config.xml which I hope to upload to this ticket in the hope that it helps with a resolution.