Allow a way to store code in the url.

[mattkatz]

I'd like to be able to open editr in the browser.
Then I'd like to type in the 3 panels.
As I type in the three panels I'd like to see the url change to reflect the code I've typed.
If I share that URL with someone I'd like to see that they can open the editr and see the same thing I currently see.
If they correct some of my code or make a change, they should see that URL change.
I think this could be done by putting the data uri of the code in the url string.
If they send me the new URL I could see the changes they've made and and then I can choose to run it.

I would worry about someone programmatically putting malicious code in a url, then sharing that with people - I wouldn't want to be a vector for nasty actions. One check to that might be to have a secret salt and hash the url so that it isn't something malicious people can programmatically exploit.

[mattkatz]

btw - I also really like the progress so far on editr - I hope you take some time to progress it a bit farther!