I always make sure that any significant data entered by a user can be reinstated if possible after browser crash, or w/e.
It seems that the URL could just add #number#fileChanged on the end when there are unsaved changes for that URL, and then just load them from the localStorage on page reload. Or provide an option just saying “you have changes in localStorage on this machine”.
Is there any reason that the playground doesnt do this?
If its open source I would happily do that myself.
Thank you for the wonderful tool