"Body of the message" field takes in wikitext. This is usually long-form, so could benefit from syntax highlighting, potentially reducing lint errors introduced via mass messages that need to be cleaned up by bots.
Description
Details
Event Timeline
Change #1192671 had a related patch set uploaded (by Bhsd; author: Bhsd):
[mediawiki/extensions/CodeMirror@master] Hooks: allow extensions to load CodeMIrror on special pages
Change #1192887 had a related patch set uploaded (by Bhsd; author: Bhsd):
[mediawiki/extensions/MassMessage@master] CodeMirrorHooks: load CodeMirror on Special:MassMessage
Change #1197050 had a related patch set uploaded (by MusikAnimal; author: MusikAnimal):
[integration/config@master] zuul: add CodeMirror as a Phan dependency for MassMessage
Change #1192671 merged by jenkins-bot:
[mediawiki/extensions/CodeMirror@master] Hooks: allow extensions to load CodeMIrror on special pages
Change #1197050 merged by jenkins-bot:
[integration/config@master] zuul: add CodeMirror as a Phan dependency for MassMessage
Change #1192887 merged by jenkins-bot:
[mediawiki/extensions/MassMessage@master] CodeMirrorHooks: load CodeMirror on Special:MassMessage
Works for me. This is great, thanks. There have been many bot tasks on enwiki to clean up botched mass messages. Hopefully they won't be needed now.

