It seems like this affects only macOs at least I tried on windows Chrome with no trouble or black screen.
the google chrome version that i have is Version 65.0.3325.162 (Official Build) (64-bit) and downloaded chromium to see if the problem persisted , and it does at least in this version: Chromium Version 67.0.3378.0 (Developer Build) (64-bit)
The black screen is also happening in all of the examples at the krpano site. The interface and maps do appear only the loading shows up and finishes but leaves a fully black pano image.
I assume that there is a problem with WebGl?
if chrome is forced to ?flash=only there is no problem or black screen
Klaus, can you confirm this?
Any idea or solution?
Thanks!