Feature request OffScreen Canvas

[kasperkamperman]

You use canvas for most operations. Did you consider supporting OffScreen canvas:
https://developers.google.com/web/updates/2018/08/offscreen-canvas

It's a Chrome only technology, so maybe it's too much fuss to implement (especially because it would also involve a web-worker then):

https://caniuse.com/#search=offscreencanvas

[blueimp]

Thanks for the suggestion.
In most cases, there is only a single drawImage call (which has to be an OnScreen canvas so it can be displayed), however I've added support to use an OffScreen canvas where applicable.