Apparently not! This textbox doesn't even show as "editable". WTF?
But in a jirs issue, I can invoke emacs on, for example a comment box, but when I save my changes, the emacs buffer reverts back to original state and the jira comment is unchanged.
I can successfully edit text (via emacs) on other web pages.
chrome = Version 64.0.3282.186 (Official Build) (64-bit)
emacs = 25.2.1
edit-with-emacs = 1.15
OS = ubuntu-17.10
Jira =