openlayers/openlayers — pull request #1268 by fbuchinger (2014-03-06 13:02:51+00:00)
Title: Prevent requests for "negative" wmts tiles

Prevent requests for tiles with negative row/col indices or those that exceed matrixWidth or matrixHeight. Motivation: WMTS spec doesn't allow negative row/col indices and the current bounds checks in .getUrl don't prevent requests for such tiles.