Sometimes, you’ll notice that a background tab has an orange dot on it in Edge (or a blue dot in Chrome). If you click on the tab, the dot disappears.
confirm() dialog, or a prompt requesting permission to launch an Application Protocol:
Years ago, the dot also used to appear any time the title of a pinned tab changed (because pinned tabs don’t show their titles) but that code was removed in 2018.
Nowadays, web content cannot directly trigger the dot icon (short of showing an