On editing a page on mediawiki.org
Navigated to
https://www.mediawiki.org/wiki/Manual:Coding_conventions/CSS?veaction=edit#Less
Looking in the console I see:
Uncaught NotFoundError: An attempt was made to reference a Node in a context where it does not exist.
The save button is disabled.
I only noticed this after doing a long edit :(
Version: unspecified
Severity: major
URL: https://www.mediawiki.org/wiki/Manual:Coding_conventions/CSS?veaction=edit
Google Chrome Version 30.0.1599.69 and https://www.mediawiki.org/w/index.php?title=Manual:Coding_conventions/CSS&oldid=797048
Uncaught NotFoundError: An attempt was made to reference a Node in a context where it does not exist. load.php?debug=false&lang=en&modules=ext.visualEditor.core%2Cdata%2Cexperimental%2Cicons-vector%2Cs…:155
ve.dm.Converter.getDomSubtreeFromData load.php?debug=false&lang=en&modules=ext.visualEditor.core%2Cdata%2Cexperimental%2Cicons-vector%2Cs…:155
ve.dm.Converter.getDomFromData load.php?debug=false&lang=en&modules=ext.visualEditor.core%2Cdata%2Cexperimental%2Cicons-vector%2Cs…:148
(anonymous function) load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2CviewPageTarget%7Cjquery.by…:94
Oh, sorry, it's something about that page in particular - confirmed on Chromium 28, Ubuntu GNU/Linux 12.04
This was because of breakage in MWSyntaxHighlightNode, and that page 1) contains such a node and 2) is on mw.org where MWSyntaxHighlightNode is actually enabled. This is experimental code that's only enabled on mw.org and nowhere else (although it will be available everywhere else as an opt-in once we get BetaFeatures going).
Change 88901 had a related patch set uploaded by Catrope:
Remove SyntaxHighlight from the experimental set
Patch to disable SyntaxHighlight is now merged, so this problem will be suppressed with the production push tomorrow morning; restoring to "ASSIGNED".