Azure IoT Speaker play_cloud command broken

[greenleaf]

This Azure handler won't play cloud based wav files. The play_local works fine though. The error message shown when trying to play a WAV URL is below:

Unhandled exception in thread started by <bound_method>
Traceback (most recent call last):
  File "libs/m5mqtt.py", line 101, in _msg_deal_task
  File "libs/m5mqtt.py", line 88, in update
  File "umqtt/robust.py", line 80, in check_msg
  File "umqtt/simple.py", line 271, in check_msg
  File "umqtt/simple.py", line 259, in wait_msg
  File "libs/m5mqtt.py", line 50, in _on_data
  File "IoTcloud/Azure.py", line 333, in direct_method_cb
  File "<string>", line 33, in azure_direct_Speaker_play_cloud
  File "hardware/speaker.py", line 135, in playCloudWAV
  File "hardware/speaker.py", line 82, in playWAV
ValueError: Data Format is not valid