fix: options missing when called storage backend

lib/persistence/redis.js

@@ -197,24 +197,24 @@ util.inherits(RedisPersistence, AbstractPersistence);
 RedisPersistence.prototype._buildClient = function() {
   var options = this.options.redisOptions || {};
 
-  if (this.options.url) {
-    options.url = this.options.url;
+  if (this.options.backend.url) {
+    options.url = this.options.backend.url;
   }
-  
-  if (this.options.host) {
-    options.host = this.options.host;
+
+  if (this.options.backend.host) {
+    options.host = this.options.backend.host;
   }
 
-  if (this.options.port) {
-    options.port = this.options.port;
+  if (this.options.backend.port) {
+    options.port = this.options.backend.port;
   }
 
-  if (this.options.db) {
-    options.db = this.options.db;
+  if (this.options.backend.db) {
+    options.db = this.options.backend.db;
   }
 
-  if (this.options.password) {
-    options.password = this.options.password;
+  if (this.options.backend.password) {
+    options.password = this.options.backend.password;
   }
 
   return new Redis(options);

lib/server.js

@@ -192,6 +192,9 @@ function Server(opts, callback) {
           }
         }
 
+        // make sure storage backend get options
+        that.modernOpts.persistence.backend = opts.backend
+
         that.persistence = persistenceFactory(that.modernOpts.persistence, done);
         that.persistence.wire(that);
       } else {
@@ -618,7 +621,7 @@ Server.prototype.attachHttpServer = function(server, path) {
   if (path) {
     opt.path = path;
   }
-  
+
   ws.createServer(opt, function(stream) {
     var conn = new Connection(stream);
     new Client(conn, that);