Canvas toBlob

[nudgesource]

When you call toBlob() on the canvas that is generated it produces an empty image. It appears that when the context ("webgl") for the canvas is created for drawing, a parameter needs to be passed in preserveDrawingBuffer:true as an option. Is that something that can be added as on option on the map constructor options so that the image generated can be accessed?

[ghost]

I would like to draw earth.canvas to another canvas. I believe that it is not working for a similar reason.