Multiple Assetic route configurations can be matched by a single route.

src/AsseticBundle/Configuration.php

@@ -214,13 +214,23 @@ public function getRoutes()
 
     public function getRoute($name, $default = null)
     {
-        // gives possibility to specify regex in route name
+        $assets = array();
+        $routeMatched = false;
+
+        // return all routes for which the route name matches the regex
         foreach ($this->routes as $spec => $config) {
             if (preg_match('(^' . $spec . '$)i', $name)) {
-                return $config;
+                $routeMatched = true;
+                $assets = Stdlib\ArrayUtils::merge($assets, (array) $config);
             }
         }
 
+        if ($routeMatched) {
+            return $assets;
+        } else {
+            return $default;
+        }
+
         return $default;
     }