Add a from URL render path

[jerinphilip]

Thanks for what you've done with edotor and making it open-source.

Would it be possible to add a "load from URL option"? It looks feasible using viz.js and some additional arguments.

• example

My use case is to make it easy share in forums (without having to share a large blob of text as compressed URL parameter) - something like nbviewer, but for graphviz, and still without having to store the source anywhere on the server.

[nikeee]

That is an interesting feature. I don't know whether that has some security implications. Probably not, but I'll think a bit about that.

I was also thinking about adding an actual backend that stores the graph and offers some kind of short URL. But that comes with some data privacy stuff. So this feature might come in handy for a couple of people.