Yes this is NOT a while() loop crash.
Sorry, I was busy making apps - couldn't post :(

This is part 1, the second one is being investigated, & ACTUALLY Crashes the browser window!

Error: Out of memory.

Result of A list which has 10 million items in it!

You try this code in jsfiddle/tab.

code:

var list = [];

setInterval(() => {
    list.push("crash")

    list.forEach(item => {
        list.push(item);
    });
});