Updated HAProxy version in example to version 2.3. Updated HAProxy configuration for 2.3. It does not allow the 'debug' statement in the global section. Added 'option httplog' and an 'http-request capture' statement that records the Origin header in the logs.

Author: NickMRamirez

example/docker-compose.yml

@@ -10,7 +10,7 @@ services:
     - "name=server1"
 
   haproxy:
-    image: haproxytech/haproxy-ubuntu:2.2
+    image: haproxytech/haproxy-ubuntu:2.3
     volumes:
     - "./haproxy/haproxy.cfg:/etc/haproxy/haproxy.cfg"
     - "./haproxy/cors.lua:/etc/haproxy/cors.lua"

example/haproxy/haproxy.cfg

@@ -1,7 +1,6 @@
 global
     log stdout local0
     lua-load /etc/haproxy/cors.lua
-    debug
     stats socket :9000 mode 660 level admin
 
 defaults
@@ -10,6 +9,7 @@ defaults
     timeout client 5s
     timeout server 5s
     log global
+    option httplog
 
 listen ui
     bind :80
@@ -18,6 +18,9 @@ listen ui
 listen api
     bind :8080
 
+    # Log the Origin header
+    http-request capture req.hdr(Origin) len 20
+
     # Invoke the CORS service on the request to capture the Origin header
     http-request lua.cors "GET,PUT,POST", "localhost", "X-Custom-Header"