Clicking Yes or No doesn't clear synced settings from OneDrive

There's a problem clearing synced settings from OneDrive.

When clicking Remove and Yes or No:

The dialog box won't go away and the web page doesn't go to the "Successfully deleted your synced settings" page. Refreshing the page doesn't fix this problem at all. In Developer Tools on a web browser, all I see is:

Does anyone else experience this problem or is it just the website that's having a problem?