Hi I've haproxy that send a lots of "HTTP/1.1 408" error code when Chrome is used None with firefox.
After few search on google and the mailing list I found some post regarding haproxy and preconnect, but I don't find any solution. I'm using latest 1.5-dev haproxy release from the ppa: HA-Proxy version 1.5-dev25-a339395 2014/05/10 I've tested to add *option accept-invalid-http-request <http://cbonte.github.io/haproxy-dconv/configuration-1.5.html#4.2-no%20option%20accept-invalid-http-request>*but still 408, and I've quickly removed this option. *Here is a part of my conf, I maybe have something wrong.* # Configuration pour haproxy1.5 global log 127.0.0.1 local0 log 127.0.0.1 local1 notice maxconn 4096 #debug #quiet user haproxy group haproxy defaults log global mode http option httplog retries 3 option redispatch maxconn 2000 timeout server 2h timeout connect 15000 timeout client 15000 option http-keep-alive # Application Frontend frontend ipv4-ip1-80 bind [ipv4]:80 reqadd X-Forwarded-Proto:\ https option http-server-close timeout http-keep-alive 5000 use_backend ipv4-80 frontend ipv4-ip1-443 bind [ipv4]:443 ssl crt /etc/haproxy/certs/wildcard.pem ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-RSA-RC4-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES128-SHA:AES256-SHA256:AES256-SHA:RC4-SHA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!EDH reqadd X-Forwarded-Proto:\ https option http-server-close timeout http-keep-alive 5000 use_backend ipv4-80 frontend ipv6-ip1-80 bind ip1:80 reqadd X-Forwarded-Proto:\ https option http-server-close timeout http-keep-alive 5000 use_backend ipv6-80 frontend ipv6i-p1-443 bind ip1:443 ssl crt /etc/haproxy/certs/wildcard.pem ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-RSA-RC4-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES128-SHA:AES256-SHA256:AES256-SHA:RC4-SHA:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!EDH reqadd X-Forwarded-Proto:\ https option http-server-close timeout http-keep-alive 5000 use_backend ipv6-80 # Application Backend backend ipv4-80 balance roundrobin server images-access ip2:80 weight 1 check inter 5000 rise 2 fall 5 backend ipv6-80 balance roundrobin server images-access ip2:80 weight 1 check inter 5000 rise 2 fall 5 *And here a some logs : * 2014-05-22T15:38:44+00:00 access haproxy[7762]: clientipv6:59374 [22/May/2014:15:38:29.146] ipv6-ip1-443~ ipv6-ip1-443/<NOSRV> -1/-1/-1/-1/15014 408 212 - - cR-- 0/0/0/0/0 0/0 "<BADREQ>" 2014-05-22T15:47:53+00:00 access haproxy[7762]: clientipv4:49611 [22/May/2014:15:47:38.768] ipv4-ip1-80 ipv4-ip1-80/<NOSRV> -1/-1/-1/-1/15001 408 212 - - cR-- 2/2/0/0/0 0/0 "<BADREQ>" Thansk for your help Kévin

