I just checked it out. A computer inside a computer simulation of a tabletop game? Now my head is spinning...
My guess is that if it doesn't work inside the TTS browser, there probably isn't a quick fix to make it work. What's worse, I'm also guessing that it's not very easy to debug that browser.
That being said, network play is one of the features that I will add in the next version of RPG Ambience. While I cannot give a release date at this time, that feature will probably make for a better online ambience experience than using it through a tablet inside TTS.
Jakob