I tried to reproduce this issue a few times in Chrome 44 with no luck, CCing Timo in case he has any ideas (ve.dm not getting defined, but some VE modules clearly loaded, and nothing in console?)

@Krenair, @Krinkle, just in case you didn't see it in the task description: I still have the Claude Monet tab open, and it's still displaying the same behavior when I refresh the page. (However, when I load the same page in a new tab, it loads fine). Let me know if there's anything I can do to give you more data. We can do a Google Hangout and I can screenshare if that would help.

@Krenair: I was able to reproduce it with Firefox only. It happens in master too.

As this has "Unbreak now" priority and no updates for more than two weeks, is that still a realistic priority?
If so, please set an assignee for this task (or adjust the priority). Thank you!

I just got a big rash of these in 41.0a2, on both enwiki and eswiki.

In T99026#1468254, @Neil_P._Quinn_WMF wrote:

I just got a big rash of these in 41.0a2, on both enwiki and eswiki.

@Neil_P._Quinn_WMF: Still an issue? Or has this magically vanished?

@Aklapper: Nothing since I posted that comment. It might recur since I've found it to be very intermittent, but we could close it and reopen if necessary.