test: add 'response body with no headers' http test
test: add 'response body with no headers' http test

HTTP/0.9 - fails with a parse error
HTTP/1.0 - works
HTTP/1.1 - fails with an empty response body

See #1711.

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node