fix cloudmade provider

stamen · Nov 26, 2011 · f80f4ee · f80f4ee
1 parent 41e5854
commit f80f4ee
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Showing 3 changed files with 3 additions and 3 deletions.
diff --git a/modestmaps.js b/modestmaps.js
@@ -1805,7 +1805,7 @@ var mm = com.modestmaps = {
         },
 
         setProvider: function(newProvider) {
-            if (newProvider.hasOwnProperty('getTileUrl')) {
+            if ('getTileUrl' in newProvider && (typeof newProvider.getTileUrl === 'function')) {
                 newProvider = new MM.TilePaintingProvider(newProvider);
             }