don't blow up UI on request timeouts
diff --git a/web/ons-demo/js/model.js b/web/ons-demo/js/model.js
index 29859a6..5026bd4 100644
--- a/web/ons-demo/js/model.js
+++ b/web/ons-demo/js/model.js
@@ -126,7 +126,8 @@
 			var model = toD3(results);
 			cb(model);
 		} else {
-			alert(JSON.stringify(err));
+			console.log(JSON.stringify(err));
+			cb(null);
 		}
 	});
 }