Hi, it's great that there was support for Unity3d webgl - it really works though without the Multiplayer functionality.
But most social networks have long switched to the protocol of https.
However, the updated Unity3d library refers to the http - which results in a lockout
"Mixed Content: The page at 'https://vk.com/app4909200' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://api.playerio.com/api/unitywebgl'. This request has been blocked; the content must be served over HTTPS."