It would be great if we could strip URLs of anchors (or rather just see them as the same URL, no need to strip) to prevent people from submitting the same artic

It would be great if we could strip URLs of anchors (or rather just see them as the same URL, no need to strip) to prevent people from submitting the same article multiple times, e.g. http://example.com/article http://example.com/article would be the same as http://example.com/article#anchor http://example.com/article#anchor