Trace 3D curves with facets from a formula and parameters (ranges, view angles,...). [Other example].
This is just a proof of concept : with some points of view the facets are badly rendered :)

Google Chrome Picture-in-Picture attack

I opened an issue for a security problem found in Chromium (aka Google Chrome). This issue is private as every security ones but I think I can talk about it as Chromium is not the only browser having this problem and as this problem is not so dangerous.

The problem is a picture-in-picture attack: The "Authentication Required" popup is easily imitable using DHTML. I have created a demonstration of this attack(to test using Google Chrome or Chromium browser).