not trying to pass ttl into cache.set() in getAndPassUp()

lib/multi_caching.js

@@ -68,7 +68,8 @@ var multiCaching = function(caches) {
             if (result !== undefined && index) {
                 var cachesToUpdate = caches.slice(0, index);
                 async.each(cachesToUpdate, function(cache, next) {
-                    cache.set(key, result, result.ttl, next);
+                    // We rely on the cache module's default TTL
+                    cache.set(key, result, next);
                 });
             }
         });