Rybitt custom events and outbound links testing

The head of this webpage includes:

<script
    src="https://analytics.toes.ch/api/script.js"
    data-site-id="faa22b37cf7c"
    defer
></script>
    

Analytics are public and available here.

This is an outbound link that should be tracked:
Outbound link

This button has a custom event attribute:
Meow like a cat!

<button
  data-rybbit-event="show_cat"
  data-rybbit-prop-product="randomcat"
  data-rybbit-prop-price="0.00"
>
  Show me a cat!
</button>

Alternatively, this button uses an onclick listener and a function in JS:
Bark like a dog!

<button 
    class="btn btn-primary" 
    onclick="trackEvent()"
>
    Bark like a dog!
</button>

<script>
    function trackEvent() {
      window.rybbit.event("woof", {
        dog: "randomdog",
        price: 0.00,
      });

      alert("Woof!");
    }
</script>
		

Throw error.