Trouble making it work (in-ws-repl hangs)

[Le-Brut]

Hi! I have a problem trying to get the examples to work. After loading load.lisp, evaluating the first few forms in examples.lisp, opening the link in the browser, this:

(in-ws-repl
  (alert "hello world"))

doesn't seem to do anything. Entering this code in REPL (after (in-package :web-repl)) doesn't do anything either -- it just hangs the repl till I manually interrupt it (waiting for a response maybe?). It's the same for the other in-ws-repl forms. I tried both firefox and chrome, the page it titled "web-repl demo" and is blank and nothing is happenning on it.

Would appreciate if you could take a look into this.