No magic here. I think something is wrong with your folders and url in the html. They don't match I guess.
If you open the (not working, black) link in Chrome on your desktop. Press ctrl+shift+i you should see a error code in the console part.
Or upload your images to my server :)
I renamed it for my clients so they can use it and show there archviz VRs at home. I give my clients a cardboard with each project. They love it.
I works great but the site is veeery beta still and the server isn't very fast (yet). But you are free to use it.
I switched the URL of your pano to:
www.go-stereo.com/users/88qba88/.
BTW. If you want it to be efficient you should always save your iimage size as a power of 2 (1024x1024px, 2048x2048px, 4096x4096, etc). Your phone's browser is using webgl and it worksmore efficient with these image sizes.
If you don't want or can do this, there is no problem because Three.js scales your image from 4000x4000 to 4096x4096. But I think it is better to scale it or render it yourself at the right number of pixels.