Did you fall for it? We did, at least for a few minutes.
But we hate to break it to you, Harry Potter fans, the "cloaking spray," is a well executed farce.
As part of an April Fools' prank, the University of Michigan School of Engineering posted a video to the school website, showcasing a cloaking paint in the midst of development.
Cloaking spray in development at UM video (mobile users: http://ch7ne.ws/1iiTPyi):
"[It] sprays on clear and dries invisible. Once dry, it guides light around an object, causing it to become transparent," reads the video caption."
Apparently this is a yearly tradition for the school of Engineering. A representative from the department tipped us off to this April Fools' prank from last year.
UM takes first step toward teleportation video (mobile users: http://ch7ne.ws/1pT8jry):