assertThat(response.getStatus(), equalTo(HttpResponseStatus.OK));
// read and discard header chunk
ch.readOutbound();
// read and discard open frame
ch.readOutbound();
final String msg = generateMessage(4096);
final FullHttpResponse validSend = xhrSendRequest(sessionUrl, "[\"" + msg + "\"]", service);
assertThat(validSend.getStatus(), is(HttpResponseStatus.NO_CONTENT));
final DefaultHttpContent chunk = ch.readOutbound();