How to add canvas to the map? Is there a method out of the box?

Question

JavaScript

There is a map on leaflet. Actually canvas appears there only when we draw a vector. But!
If possible, initially load the canvas? It is necessary to display imageOverlay, and then change these imageOverlay already, but the question is in canvase. I can not find methods on this topic in the dock.

Answer 1

https://leafletjs.com/reference-1.3.4.html#canvas