Hi Olivier, Just to recap, you have a webserver in subnet A, you have a HAProxy instance in subnet B
When you connect to the webserver directly, CSS works When you connect to the webserver via HAProxy, CSS fails You have now added a HAProxy instance in subnet A When you connect via the HAProxy instance in subnet A CSS works I have noticed that you are using acl acl_web hdr(host) -i mysite.mydomain.com use_backend web if acl_web I have inferred from this that you have more acls configured in the frontend, and that you have more then one backend. When you setup the HAProxy instance in subnet A, did you scp/rsync the config over and just change the bind IP address, or did you only use the relevant sections of the confg ? I wonder if there is another ACL that is causing the issue ? I would also be tempted to change the HAProy config on the instance in subnet B to point at the HAProxy in subnet A, then test connecting via the HAProxy instance in subnet B If the two HAProxy configurations are identical apart from the bind IP address and the backend server address and this works, then I would investigate if there are any IP restrictions configured on the web server, if it fails, then I would suggest further investigation on the HAProxy instance in subnet B Cheers
