HA-Proxy - Not validating ACL correctly

[xupetas]

Hello all,

I have been experimenting on HA WSS and WS with HAproxy.
Since the webgui does not support the HA, i selected the pass-trought option and wrote this ACL:

acl is_upgrade hdr(connection) -i upgrade
acl is_websocket hdr(upgrade) -i websocket

However i cannot load it pass that page because it gives an error: text validation error

The ACL is correct. What am i missing?

Thanks for your help!

[xupetas]

Up!

[fraenki]

Please provide the full output of the HAProxy config test.