Is it possible to prevent exiting full screen in safari from pressing escape?

I'm very new to hammerspoon, so help me out here. But is it possible to prevent escape key from exiting full screen in applications?

I'm especially concerened with safari.

Currently I'm able to achieve this using safari extension UserScript by adding this script:
js this.addEventListener("keypress", (e) => { if (e.key == "Escape") { e.preventDefault(); } });