Steps to reproduce
- Try to source edit the template protected page,en:Template:Static_IP, without the "template editors" right. This should display the "This page is currently protected ... message which should also contain the "Submit an edit request" button.
- Tap on the "Submit an edit request" button.
The editor loads for creating a new section with the pre-filled topic "Template-protected edit request on DD MONTH YYYY" and some content in edit box.
The editor fails to load showing the "The editor will now load. ... message. The browser's console shows the error "TypeError: Argument 1 of Window.getComputedStyle is not an object." for the mangled code line
var l = window.getComputedStyle(t).
Further, if the page is re-loaded using the link found in the message displayed in the page, a different page is loaded which appears to be in an inconsistent state as the UI contains parts of both the 2017 wikitext editor and the OWE.