Comment 18 for bug 1484696

2015-11-17 11:16:17 [-] 127.0.0.1 - - [17/Nov/2015:18:16:16 +0000] "GET /MAAS/ HTTP/1.1" 200 1862 "http://172.16.232.10/MAAS/clusters/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.56 (KHTML, like Gecko) Version/9.0 Safari/601.1.56"
2015-11-17 11:16:17 [HTTPChannel,5,127.0.0.1] Unhandled Error
 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 81, in callWithContext
     return func(*args,**kw)
   File "/usr/lib/python2.7/dist-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
     why = selectable.doRead()
   File "/usr/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 215, in doRead
     return self._dataReceived(data)
   File "/usr/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 221, in _dataReceived
     rval = self.protocol.dataReceived(data)
 --- <exception caught here> ---
   File "/usr/lib/python2.7/dist-packages/maasserver/websockets/websockets.py", line 419, in dataReceived
     self._parseFrames()
   File "/usr/lib/python2.7/dist-packages/maasserver/websockets/websockets.py", line 391, in _parseFrames
     for opcode, data, fin in _parseFrames(self._buffer):
   File "/usr/lib/python2.7/dist-packages/maasserver/websockets/websockets.py", line 190, in _parseFrames
     raise _WSException("Reserved flag in frame (%d)" % (header,))
 maasserver.websockets.websockets._WSException: Reserved flag in frame (71)