I built my Unity project with WebGL. After load the resources, I can hear the music and player sounds(movements etc), but it just display black screen only. I found some similar situation in google, but couldn't find the way to fix.
Here's the console result: https://drive.google.com/open?id=14Uhd6SBbDHdPN39TurY9H7QPGhPLfb_X
Used Unity 2018.2.1f1, tested with Chrome 73.0.3683.86.