show an error message when the inspector url could not be loaded
show an error message when the inspector url could not be loaded

RSpace/aframe,mkungla/aframe,mkungla/aframe,weddingdj/aframe,wizgrav/aframe,jaxmolina/ar,googlecreativelab/aframe,ngokevin/aframe,RSpace/aframe,darkwing/aframe,jaxmolina/ar,weddingdj/aframe,googlecreativelab/aframe,aframevr/aframe,dmarcos/aframe,darkwing/aframe,wizgrav/aframe,ngokevin/aframe,aframevr/aframe,chenzlabs/aframe,chenzlabs/aframe,dmarcos/aframe