diff --git a/mbtilesmap/__init__.py b/mbtilesmap/__init__.py
index b93d521..157d2be 100644
--- a/mbtilesmap/__init__.py
+++ b/mbtilesmap/__init__.py
@@ -5,6 +5,7 @@
 MBTILES_NAME_PATTERN = r'[\.\-\w]+'
 
 app_settings = EasyDict(dict({
+    'MAP_URL_NAME' : 'map',
     'MBTILES_EXT' : 'mbtiles',
     'MBTILES_ROOT' : settings.MEDIA_ROOT,
     'TILE_SIZE' : 256,
diff --git a/mbtilesmap/models.py b/mbtilesmap/models.py
index 8d2b25f..9d5f27a 100644
--- a/mbtilesmap/models.py
+++ b/mbtilesmap/models.py
@@ -4,7 +4,7 @@
 import logging
 
 from django.core.exceptions import ImproperlyConfigured
-from django.core.urlresolvers import reverse
+from django.core.urlresolvers import reverse, NoReverseMatch
 from django.utils import simplejson
 from django.utils.translation import ugettext as _
 
@@ -88,9 +88,9 @@ def filesize(self):
 
     @property
     def jsonp(self):
-        #TODO: cache !
         tilepattern = reverse("mbtilesmap:tile", kwargs=dict(name=self.name, x='{x}',y='{y}',z='{z}'))
         tilepattern = tilepattern.replace('%7B', '{').replace('%7D', '}')
+        
         jsonp = {
             "id": self.name,
             "scheme": "xyz",
@@ -100,9 +100,17 @@ def jsonp(self):
             "maxzoom": self.maxzoom,
             "center": self.center(),
             "tiles": [tilepattern],
-            "webpage": reverse("map", kwargs=dict(name=self.name)),
-            #"download": reverse("mbtilesmap:download", kwargs=dict(name=self.name)),
         }
+        # Add direct link to Webpage if defined in project
+        try:
+            mapurl =reverse(app_settings.MAP_URL_NAME, kwargs=dict(name=self.name))
+            jsonp["webpage"] = mapurl
+        except NoReverseMatch, e:
+            logger.warning("Webpage url for map (MAP_URL_NAME) not available.")
+        
+        #TODO: Add direct link to download MBTiles file
+        #"download": reverse("mbtilesmap:download", kwargs=dict(name=self.name)),
+        
         jsonp.update(self.metadata)
         return 'grid(%s);' % simplejson.dumps(jsonp)
 
@@ -114,8 +122,8 @@ def metadata(self):
         metadata = dict(rows)
         bounds = metadata.get('bounds', '').split(',')
         if len(bounds) != 4:
-            logger.warning(_("Missing or invalid bounds metadata in '%s'") % self.name)
-            bounds = '-180,-90,180,90'
+            logger.warning(_("Invalid bounds metadata in '%s'") % self.name)
+            bounds = [-180,-90,180,90]
         metadata['bounds'] = list(map(float, bounds))
         return metadata