Symptoms
BIG-IP proxying http2 -> http1.1. In response to a HEAD request, pool member sends response with "Transfer-Encoding: chunked" header without chunked payload. BIG-IP sends "Transfer-Encoding: chunked" header back to http2 client which generates RST_STREAM, PROTOCOL_ERROR. According to RFC 7450 a proxy SHOULD remove such headers.
Impact
Http2 connection is reset
Conditions
1) H2 <-> H1 is configured on virtual server
2) HEAD request over http2->http1.1 gateway getting chunked response.
Workaround
iRule to remove "Transfer-Encoding: Chunked" header from response.
