Am 22.06.2014 17:52, schrieb Yury Katkov:

Got no data from https://meta.wikimedia.org/w/api.php?action=sitematrix&format=json

done.

Try to use the non-secure connection with http://meta.wikimedia.org/w/api.php?action=sitematrix&format=json. This worked for me.

Best regards,
Bene