Don't needed.
It's just for your information...
hmm thanks for information. Seems that Locus is blocked because of tile downloading?
So problem is not changed URL to map tiles, but blocking of Locus.
edit
I was checking our internal bug tracker and we know about this issue since November 2014!
Peter already wrote two emails to map server owners, but not response.
So third one today to some found different email address.