Photon Server self hosted error

Hello,

I wanted to try photon WebGL client with self hosted photon server. So in the Unity editor i put the server IP address, but when application runs (WebGL) in the editor, it gives error

UriFormatException: URI scheme must start with a letter and must consist of one of alphabet, digits, '+', '-' or '.' character.

using self hosted photon server ver sion Photon-OnPremise-Server-SDK_v4-0-29-11263

but this error is in the Unity editor

Anybody knows why or how to fix that?

Thanks