Icon images turn black when using WebGLPointsLayer.

[kimdonghyun1219]

WebGLPointsLayer
The example is being used as is.
When the network is unstable or slow, the icon becomes black frequently.
Is there a way to prevent this from happening?

"ol": "^7.1.0"

[mike-000]

If the image fails to load (e.g. you change "icon-src": "data/icon.png", to "icon-src": "data/icon_.png",) it will appear black in that example. But make the same change in a canvas layer, e.g. https://openlayers.org/en/latest/examples/modify-icon.html it will appear transparent.

OpenLayers cannot prevent network errors, but maybe the result should be consistent in both renderers? (as with icon-color/fill-color in #15295).