Last modified: 2014-03-01 00:32:01 UTC
The browser window title is changed to "Parse error at position 0 in input {{"}}{{{1|$1}}}{{"}}" when editing an article with the VisualEditor on dewp. Reproducible in many articles and at least Firefox and Chromium.
This seems to be caused by the templates in [[de:MediaWiki:Editing]]. Can be seen on testwiki as well, where parser functions are the cause ([[testwiki:MediaWiki:Editing]]).
This seems solved now on dewp. Good to close from my side.
This is still an issue. I've restored MediaWiki:Editing on testwiki for demonstration purposes. Krinkle has stated "Don't use wikitext in this message" (MediaWiki:Editing), but he didn't give a reason. Since parser functions, etc. work fine in this message in MediaWiki core, I think we should expect VE to handle them too, or else it should use a different message that specifically does not support fancy stuff.