UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Steps to reproduce the problem:
I made a github repo that demonstrates the problem: https://github.com/hef/freeze-on-notification-repro

The javascript boils down to this:

    while(true) {
        window.Notification.requestPermission();
    }

At this point, chrome just freezes.  To be clear, it's not just the one tab that freezes, but the entire application.

What is the expected behavior?
at worst, the page should hang, and not the entire application.  I'm guessing at best, the javascript should maybe be detected as an unresponsive script after some amount of time

What went wrong?
Chrome freezes, requiring a force quit.

Did this work before? No 

Chrome version: 70.0.3538.110  Channel: stable
OS Version: OS X 10.14.1
Flash Version: 

You might get prompted to "allow notifications" the first time you visit, and you might have to pick an option for bug to occur.