Polyfill doesn't support the Vive on WebVR enabled browser: Firefox 55.0.3 (64 bit).

[JoeyDeVries]

On a custom WebVR project, the Vive headset stops working (notably the vrDisplay.getFrameData function continously returns false) the moment we enable polyfill. The Vive headset also doesn't work in the WebVR samples at https://webvr.info/samples/ when selecting the polyfill options.

Seeing as the browser we used (Firefox 55.0.3. (64 bit)) supports native WebVR, I'd expect polyfill to purely act as a pass-along implementation. This doesn't happen, as vrDisplay.getFrameData stops working with polyfill enabled.

[JoeyDeVries]

Tooking a look at some of the other issues, pull request #276 fixed this issue.