The 'WebVR' button in the module exports your image as a standalone HTML file. This file can be viewed locally in your webbrowser, or it can be hosted online.
It renders your image as an immersive VR experience, with a large screen wrapping around the viewer. The VR experience can be viewed in most popular headsets, including HTC Vive, Oculus, Windows Mixed Reality, GearVR, Google Day Dream and even sub-$5 Google Cardboard devices.
To view an experience, put it in an accessible location (locally or online) and launch it from a WebVR/XR capable browser.
Please note that landscape images tend to be more immersive.
All light in your image is spread according to a Point Spread Function (PSF), not just the stars.
The first-pass algorithm is an enhanced wavelet denoiser, meaning that it is able to attenuate features based on their size.
This too is common practice in the realm of documentary photography.
In this case, when you launch a module that is able to apply a mask, the whole image will flash in green three times.
You can convert everything you see to a format you find convenient. Give it a try!