Feature request : load and update a remote image URL

[tobei]

I'm making a slideshow web application with SVG slides and would like to use such a javascript editor to edit the slides. It would be nice if instead of a filesystem open/save pop-up there was the possibility to pass to method-draw the URL of the svg image to edit so that the editor opens with that image (GET). And the "save" action would then simply POST the new svg to that same URL.

That would allow method to be embedded in a lot of browser workflows involving editing a remote resource and posting the result. Or maybe there is a way already that i don't know about?