Chrome Tampermonkey Popup Remover

I need a lightweight Tampermonkey userscript for Google Chrome that automatically removes an intrusive modal window on a set of specific sites I will share after award. The twist is that these pages use the same container or listeners for their built-in zoom controls, so many “overlay killers” break zoom completely. Your script must therefore strip out only the modal (and its semi-transparent backdrop) while keeping every native zoom-related element, shortcut and event listener fully functional.

Please write clean, well-commented code, include a short block at the top where I can paste additional domains later, and add a brief README line explaining where in the DOM you hook and why.

Acceptance is simple:
• On each provided URL the modal and backdrop are gone on load.
• Keyboard/mouse or UI zoom on the page still works exactly as before.