List of steps to reproduce (step by step, including full links if applicable):
- Wikisource DE
- Open "Seite:Die Gartenlaube (1864) 779.jpg" at https://de.wikisource.org/w/index.php?title=Seite:Die_Gartenlaube_(1864)_779.jpg&action=edit
- Edit
- Landscape View*
What happens?:
- no "landscape" textare, right side blocked
- JS Console:
Uncaught TypeError: can't redefine non-configurable property "SetCookie" deprecate jQuery <anonymous> https://wikisource.org/w/index.php?title=MediaWiki:Base.js&action=raw&ctype=text/javascript:62
What should have happened instead?:
- landscape textare
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc: