diff --git a/haproxy/src/haproxy.cfg b/haproxy/src/haproxy.cfg
index bed4af1a5..5c0a2ba4c 100644
--- a/haproxy/src/haproxy.cfg
+++ b/haproxy/src/haproxy.cfg
@@ -14,29 +14,32 @@ defaults
     log global
     option httplog
 
-frontend uplink
-    mode tcp
-    bind :8000
-    tcp-request inspect-delay 2s
-    tcp-request content accept if HTTP
-    tcp-request content accept if { req.ssl_hello_type 1 }
-    use_backend receive_http if HTTP
-    default_backend receive_https
-backend receive_http
-    mode tcp
-    server loopback-for-http abns@http send-proxy-v2
-backend receive_https
-    mode tcp
-    server loopback-for-https abns@https send-proxy-v2
+# We have to wait for 2.3: https://github.com/haproxy/haproxy/issues/737
+# WebSocket handling is broken in HaProxy 2.x, x<3
+#frontend uplink
+#    mode tcp
+#    bind :8000
+#    tcp-request inspect-delay 2s
+#    tcp-request content accept if HTTP
+#    tcp-request content accept if { req.ssl_hello_type 1 }
+#    use_backend receive_http if HTTP
+#    default_backend receive_https
+#backend receive_http
+#    mode tcp
+#    server loopback-for-http abns@http send-proxy-v2
+#backend receive_https
+#    mode tcp
+#    server loopback-for-https abns@https send-proxy-v2
 
-frontend http
-    mode http
-    bind abns@http accept-proxy
-    redirect scheme https code 301
+#frontend http
+#    mode http
+#    bind abns@http accept-proxy
+#    redirect scheme https code 301
 
 frontend https
     mode http
-    bind abns@https accept-proxy ssl crt /usr/local/etc/haproxy/combined.pem alpn h2,http/1.1
+    #bind abns@https accept-proxy ssl crt /usr/local/etc/haproxy/combined.pem alpn h2,http/1.1
+    bind *:8000 ssl crt /usr/local/etc/haproxy/combined.pem alpn h2,http/1.1
     default_backend backend_client  # this is defined in the dev-*/prod-* file
 
     acl action path_beg -i /system/action
diff --git a/openslides-client b/openslides-client
index 0e8888fe2..3a3c444d6 160000
--- a/openslides-client
+++ b/openslides-client
@@ -1 +1 @@
-Subproject commit 0e8888fe23442bf362a77cbdefca5e406dacf020
+Subproject commit 3a3c444d6495907195de1349aa475eca43ebc843