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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>We have a fully seeded cache that was fully seeded to a polygon outline. The intent is to serve the tileset through a variety of services (WMS, TMS) using mod-mapcache. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Tiles that are outside the polygon outline but still within the polygon bounding box should be blank tiles. However, a request for one of these tiles results in a call to that tileset’s WMS source. This creates considerable overhead by starting up MapServer and writing the resulting tile to the cache. Is there any way to disable the WMS calls for these blank tiles, and instead short-circuit the request to return a blank? That is, once a tileset has been fully seeded, is it possible to disable any further calls to the WMS, so that requests for tiles that are not in the cache return a blank?<o:p></o:p></p></div></body></html>