the codes under Chapter websockets didn't work well on cloud server.

[cl-03]

I found that the package CLACK exists some bugs, so that the codes under Chapter websockets didn't work well on cloud server,just work well on localhost.even though the Helloworld example at https://github.com/fukamachi/clack.
(defvar *handler* (clack:clackup (lambda (env) (declare (ignore env)) '(200 (:content-type "text/plain") ("Hello, Clack!")))))

[cl-03]

but Hunchensocket works well

[vindarel]

Thanks for reporting. Is there a corresponding Clack issue?

What is the code to change, this?

(defvar *chat-handler* (clack:clackup #'chat-server :port 12345))
(defvar *client-handler* (clack:clackup #'client-server :port 8080))

[vindarel]

I also found the websocket-client buggy on localhost.

The Hunchensocket example worked fine. I tested it with https://www.piesocket.com/websocket-tester

Also the newer Portal works fine and looks clean and simple: https://github.com/charJe/portal