It worked from Safari but not FF on the proxies network. During the BELvALG game there are lots of trouble again, seems to only get a small portion of the captions and then stops updating. Here is the last of what I was able to get:

    {
      "id": 4399254,
      "channel": 785,
      "text": "But at BOQ you can talk to one person",
      "date": 1403023783.284,
      "cid": 7
    }