Information:

Environment
  • Chrome Browser Agent

 

The15200 error codes are specific to the Chrome Browser Agent:
QUIC_HANDSHAKE_FAILED 15200
QUIC_PROTOCOL_ERROR 15200
REQUEST_FOR_SECURE_RESOURCE_OVER_INSECURE_QUIC 15200
RESPONSE_HEADERS_TRUNCATED 15200

For more information on QUIC, see the Chromium Blog article Experimenting with QUIC.

If the error message is

{ ErrorCode : 15200, ErrorMessage : 'ERR_CONTENT_DECODING_FAILED' }

the likely cause is that your HTTP request's headers claim that the content is gzip encoded, but it isn't. Turn off the gzip encoding setting or make sure the content is in fact encoded.