in all other Custom Layouts pages ( e.g. Event Detail Page ) I can use the back end editor "Edit Layout Page" to also add JavaScript or HTML tags that will be rendered in the frontend.
Only with the Edit Layout Page of the List Row Detail i cannot render HTML.
For example if I have the following Custom Layout in the editor:

This is the result that gets rendered in the front end:

In all the other Custom layouts ( e.g. Event Detail Page ) the 'script' section would be executed.
How can I prevent that the JavaScript / HTML content of the List Row Detail Custom Layout will be escaped to plain text ?