Gets the right url (#608 / 3)

lib/OpenLayers/Format/WMTSCapabilities.js

@@ -169,11 +169,25 @@ OpenLayers.Format.WMTSCapabilities = OpenLayers.Class(OpenLayers.Format.XML.Vers
             }
         }
 
+        var url;
+        if (requestEncoding === "REST" && layerDef.resourceUrl) {
+            url = layerDef.resourceUrl.tile.template;
+        }
+        else {
+            var httpGet = capabilities.operationsMetadata.GetTile.dcp.http.get;
+            url = httpGet[0].url;
+            for (var i = 0, ii = httpGet.length; i < ii; i++) {
+                if (httpGet[i].constraints && httpGet[i].constraints.
+                        GetEncoding.allowedValues[requestEncoding]) {
+                    url = httpGet[i].url;
+                    break;
+                }
+            }
+        }
+        
         return new OpenLayers.Layer.WMTS(
             OpenLayers.Util.applyDefaults(config, {
-                url: requestEncoding === "REST" && layerDef.resourceUrl ?
-                    layerDef.resourceUrl.tile.template :
-                    capabilities.operationsMetadata.GetTile.dcp.http.get[0].url,
+                url: url,
                 requestEncoding: requestEncoding,
                 name: layerDef.title,
                 style: style.identifier,