Hi @bkmitchell ,
thanks for reaching out.
Unfortunately our built-in relay server tech doesn't support what you need for Unity WebGL multiplayer.
Most brainCloud devs implementing your use case would integrate with Photon or Edgegap for their multiplayer for this reason. They both work well and work well with brainCloud!
[PS - This is an area of ongoing development for us though and we aim to fill this gap in the future. I can't comment on timelines for that though...]
Paul.