wingBuffer if we have an external display to
            // mirror to.
            initWebGL(vrDisplay.capabilities.hasExternalDisplay);
          } else {
            initWebGL(false);
            VRSamplesUtil.addInfo("WebVR supported, but no VRDisplays found.", 3000);
          }
        });
      } else if (navigator.getVRDevices) {
        initWebGL(false);
        VRSamplesUtil.addError("Your browser supports WebVR but not the latest version. See <a href='http://webvr.info'>webvr.info</a> for more inf