VR on the web threatens to cleave the web platform in twain like mobile did before it. The solution then and the solution now is Responsive Web Design which websites to scale well for all form factors. Similarly for VR to succeed on the web we need to figure out how to make VR experiences that work both in any VR headset and also without a VR headset at all. WebVR boilerplate is a new starting point for building responsive web VR experiences that work on popular VR headsets and degrace gracefully on other platforms. Check out a couple of demos a simple one and one ported from MozVR .
Link: Responsive WebVR, headset optional | Boris Smus