Does that work for anyone against a trunk server right now? On my MacOS, I get:
> curl -k http://localhost:8555/ <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>504 Proxy Error</title> </head><body> <h1>Proxy Error</h1> <p>The gateway did not receive a timely response from the upstream server or application.</p> </body></html>
