[mod_proxy] do not forward Expect: 100-continue
[mod_proxy] do not forward Expect: 100-continue

do not forward Expect: 100-continue to backend
since we do not handle HTTP/1.1 100 Continue response

gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4