Closing a PopUp calls window.onpopstate

[eliboni]

Steps to reproduce
https://leafletjs.com/examples/quick-start/example.html

add

window.onpopstate = function(event) { console.log(event); console.log("onpopstate"); };

see attached

Expected behavior
window.onpopstate should not be called when a popup is closed (click on x on top-right of the popup), at least this is the behavior I would expect, if I am wrong let me know

Current behavior
window.onpopstate is called when popup is closed.

Environment

• Leaflet version: 1.8.0
• Browser (with version): tested on Firefox, Safari
• OS/Platform (with version): Linux / Ipad

Please create an example using https://leafletjs.com/edit.html or any other jsfiddle-like site.

https://plnkr.co/edit/jZYUUuMVaGkmreIt

[IvanSanchez]

Duplicate of #8159 . Preventing the event's default behaviour (as done in #8160) should avoid the change in the window state.