The examples on the website (
http://krpano.com/tours/kuchlerhaus/html5only.html for example) only work in Safari, Chromium doesn't work.
But happily I'm reading this:
"The big steps regarding HTML5/Javascript support are now already done with the new krpanoJS viewer. The rendering output - now via CSS 3D Transforms - is only one small part of the viewer, adding also other rendering possibilites (like WebGL) should be not that big thing. "
I think WebGL does work in browsers like Firefox, so I hope it will be supported soon.