Doesn't seem to work for me on my HTC Vive but I've never used any A-Frame site before so I might just be doing it wrong. I tried on both Chrome and Firefox.
After that, I do not know what the current status is for A-Frame supporting the Vive. And of course, there was recently a big change to the WebVR API, so A-Frame may not be caught up to that, either.
As far as I know, A-Frame's "known good configuration" is Oculus Rift + Firefox Nightly, or (HTC Vive|Oculus Rift) + not-latest Experimental Chromium.
And Windows 10, of course, because Facebook can't find a single person capable of doing graphics work on Linux out of 15,000 employees, or so they would have us believe.
You can find access to all of these things at http://www.webvr.info
Either you muck around with NVidia binary Linux drivers (or worse, binary drivers for some ARM chipset in an Android phone), or you're working with Intel stuff (which isn't going to give you a cutting-edge VR experience).
A for-profit corporation has better things to spend its 20% time on.