Put the app's state in the URL, to make it linkable/sharable

[sirtet]

If i see a certain cool pic. that i want to share somewhere, i currently can't.
We need the parameters of current-image, date- and time- range in the url.

[sirtet]

If state is in the URL, should the App be navigable via history?
(eg. browser-back to go to previous image)
Probably not.
So maybe only provide a URL with the current state via a Share-Button, and not have it in the url by default?
If so, what happens if that URL with state-info is loaded?
(after a user opens that shared URL)
Probably the app would only read it at startup, then ignore it?
Might be confusing later for a user, if the state is different then what's seen in the Browsers URL-bar.
So maybe after reading, the App should rewrite the URL, removing state-info?

I guess there are best practices for these Questions to be found online...