Click click click

It might be beautiful on desktop, but on mobile it's a very limited experience.

Great showcase on how much data your browser is unnecessarily bleeding to every website out there that wants it.

Genuine, non-rhetorical questions: does anyone know why the hell your browser needs to tell the site

where your pointer is, instead of telling it which elements you clicked and calling a day?
if the window is active/inactive?
the relative position of the window in your screen, instead of just its approximate size?

Wander reply

Hover effects, you often want to respond to the user hoving their mouse somewhere, for instance showing a tooltip.
Battery/network saving, a site can pause animations or reduce update requests when the window is inactive.
I cant really think of a good use for this one these days, it was something browsers had in the 90s (not just readonly, websites could move your browser window where they wanted for a while). Maybe its kept for backwards compatibility.

That explains it. Thank you and @[email protected] for the replies!

Some ideas:

for custom elements and general interaction, e.g., custom drag and drop or sliders
for instance YouTube does this whether to auto play videos or to keep them muted
i dont know, maybe for layouting things

Fun, but disturbing. Our browsers should not be able to determine so much about our behaviour, IMHO.