[Bug Report] yml scrapers aren't self-aware of url

[scruffynerf]

a yml scraper, despite being called against a url, doesn't have a way to directly return that url as a value,
depending entirely on the resulting page having some form of url content to return.
rl
For most bigger sites where a url is provided, this isn't an issue, but the lesser sites where you can't easily get a url of what you are scraping, this is a problem, and often the result is the scraper doesn't return a url, which can be a problem when doing tasks that expect a url value to be returned. I've seen this result in scraping and then emptying the url value, which means the scene can't easily be rescraped, for example.

What should happen:
some way to make the yml scraper return the called url AS the URL result, if not otherwise set.