"Unterminated template" or "Cannot read properties of null"

[j2l]

I tried install your package on a fresh new svelte+vite install and pasted your code into App.svelte but first, it seems to refuse the COMPONENT script:

const COMPONENT = `<script>
  export let count = 0;
  function on_click(event) {
      count += 1;
  }
</script>

This leads to an error in the browser and the server: Unterminated template
Changing /script to /script make it work but then I get:

App.svelte:18 Uncaught TypeError: Cannot read properties of null (reading 'type')

where line 18 is if (result.type === PIPELINE_RESULT_TYPES.error) {

I guess I didn't get something. Could you please let me know how to make it work?