failed: Could not decode a text frame as UTF-8.

[ants-sinica]

I have program running perfectly with txWS and Python2.7 via SSL channel. Recently the program upgraded to Python 3.6 and pip-installed a new copy of Twisted and txWS. Sending message to server works fine. But the other direction goes something wrong: The error message is
"failed: Could not decode a text frame as UTF-8." in Chrome when the payload size is over 100 bytes. Is there any suggestion?

[iapyeh]

The following code works for me: (because pack in python3 returns differently)

def make_hybi07_frame(buf, opcode=0x1):
    """
    Make a HyBi-07 frame.

    This function always creates unmasked frames, and attempts to use the
    smallest possible lengths.
    """
    if isinstance(buf, six.text_type):
        buf = buf.encode('utf-8')

    _len = len(buf)
    if _len <= 125:
        length = six.b(chr(_len))
    elif _len <= 65535:
        length = b"\x7e" + pack('>H',_len)
    else:
        length = b"\x7f" + pack('>Q',_len)


    # Always make a normal packet.
    header = chr(0x80 | opcode)
    return six.b(header) + length + buf