after updating to Alpha 41 (and also on 42), the URL used by creating a CubeTexture for loading base64 textures seems to be wrong.
I get the error message: GET data:image/png;base64,iVBOR…=_px.jpg net::ERR_INVALID_URL
The extension “_px.jpg” doesn’t belong there, since it is a base64 texture.
On Alpha 40 everything works normally.
Here is a simple playground example showing the issue:
It should load the skybox texture containing a white rectangle in the center. Switching to 4.2.0 loads the skybox correctly, the latest alpha doesn’t.