Turbo event to detect click on browser "go back" button

I have a page with a text editor that has attached an event like this:

action: 'beforeunload@window->editor#leaving turbo:before-visit@window->editor#leaving'

Basically it detects when the user tries to leave that page (editor) and it informs the user if they have unsaved changes. It prevents the user from accidentally leaving a document without saving it first.

It works in general, however turbo:before-visit is not triggered when the user clicks the browser back button.

What event should I listen for?