openstreetmap/openstreetmap-website — pull request #650 by rjw62 (2013-12-10 14:26:22+00:00)
Title: Restore display of bbox on the map when box=yes in URL

As per https://trac.openstreetmap.org/ticket/5055 , this pull request attempts to restore the previous functionality of displaying a rectangle to outline the bounding box when box=yes is present in the URL query string along with a set of bounding-box coordinates.