Steps to replicate the issue (include links if applicable):
- Check out https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1098184/6
- Set skin to Timeless or Monobook or legacy Vector
- Visit Special:EventDetails, Special:DeleteEventRegistration or Special:EditEventRegistration
What happens?:
Message boxes are not styled
What should have happened instead?:
Styles for message boxes need to be added explicitly
For example this call to Html::errorBox should also include a call to OutputPage::addModuleStyles('mediawiki.codex.messagebox.styles') or ideally via CodexModule.
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):