As a logged in user when I try to edit https://en.m.wikipedia.org/wiki/User:Jdlrobson/common.js I get:
```
Exception in module-execute in module skins.minerva.editor:
load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:176 TypeError: Cannot read property 'text' of null TypeError: Cannot read property 'text' of null
at setupEditor (eval at <anonymous> (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:4), <anonymous>:182:97)
at init (eval at <anonymous> (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:4), <anonymous>:182:369)
at eval (eval at <anonymous> (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:4), <anonymous>:183:576)
at mw.loader.implement.mobile-frontend-editor-disabled (eval at <anonymous> (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:4), <anonymous>:183:586)
at Object.<anonymous> (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:161)
at fire (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:45)
at Object.add [as done] (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:45)
at Object.always (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:46)
at runScript (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:161)
at checkCssHandles (load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=1rfuz0b:162)
```
* This also happens on **all pages** in the desktop version of the skin:
https://en.wikipedia.org/w/index.php?title=Heading&useskin=minerva
* It happens on the ?action=edit page (https://en.m.wikipedia.org/wiki/Columbia_River?action=edit)