On WebGL builds, I'm not able to use friend features like "LoadFriends" and "AddContact." There's no error callback with "LoadFriends" so I can't offer any additional info there. But "AddContact" comes back with an error response of "unknown error." I can successfully read, edit and update the player's custom data in WebGL. So everything else seems to be working fine in WebGL. The issue seems limited to friend features.
To clarify, all of these features work fine for me on PC, iOS and Android.
You can try for yourself here: www.volleyvillage.com If you quickly click the top left corner of the player 3 times it will display a console log where you can see all the debug info listed.
We have just released on this website the preview of Update 2.1.8 that, besides other things, should solve also your issues in WebGL (specifically we are now sending proper response headers in every webservice, that's why someone worked and other not in your case). Download and apply it now from your Purchase History.
Please let us know if you'll have more issues with the patch.
FRANCESCO CROCETTI @ SKARED CREATIONS
I just downloaded the new version and I'll give it a try shortly.
Thanks!
Success!
Upgrading to 2.1.8 has fixed the issue with adding/challenging friends.
Thanks for the help!