Last modified: 2013-05-08 18:53:50 UTC
I had a look at its code and finally found the compatibility map. See Gerrit change #41147.
* bug 41147
For browsers that support JS but don't have VE support - e.g. Opera or Iceweasel - have a notice somewhere (above the wikitext edit page?) to inform users of why they don't get the nice editor...
We've changed our plans for how the overall integration will work, so marking this as a DUPE of 38128 now. *** This bug has been marked as a duplicate of bug 38128 ***