Route checking to limit usersnap component to listings page

Author: tladendo

app/index.jade

@@ -18,15 +18,17 @@ html
       })(document);
 
     script.
-      (function() {
-        var s = document.createElement("script");
-        s.type = "text/javascript";
-        s.async = true;
-        s.src = '//api.usersnap.com/load/'+
-                '3e7c8f0c-6cf6-41b6-9f2c-e8e4e60dfc59.js';
-        var x = document.getElementsByTagName('script')[0];
-        x.parentNode.insertBefore(s, x);
-      })();
+      if (location.href.match(/listings\/$/)) {
+        (function() {
+          var s = document.createElement("script");
+          s.type = "text/javascript";
+          s.async = true;
+          s.src = '//api.usersnap.com/load/'+
+                  '3e7c8f0c-6cf6-41b6-9f2c-e8e4e60dfc59.js';
+          var x = document.getElementsByTagName('script')[0];
+          x.parentNode.insertBefore(s, x);
+        })();
+      }
 
     include ../assets/scripts/google.analytics.jade
     include ../assets/scripts/zendesk-widget.jade