From f4c94d428027a6d6caf3a0d49495b907b7179c27 Mon Sep 17 00:00:00 2001
From: goferito <goferito@gmail.com>
Date: Thu, 7 May 2015 11:27:44 +0200
Subject: [PATCH] Avoid searches to permanent overwrite options

---
 lib/bing.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/bing.js b/lib/bing.js
index a2ac9bb..9b448a0 100644
--- a/lib/bing.js
+++ b/lib/bing.js
@@ -50,11 +50,10 @@ var Bing = function( options ) {
       throw "Error: Callback function required!";
     }
 
-    var opts = this.options;
+    // Create a copy of the options, to avoid permanent overwrites
+    var opts = JSON.parse(JSON.stringify(this.options));
 
-    if (options !== null) {
-      opts = _.extend(this.options, options);
-    }
+    _.extend(opts, options);
 
     var reqUri = opts.rootUri
                    + vertical