Use undefined instead of 0 to deference transport for clarity.

diff --git a/src/ajax.js b/src/ajax.js
index 3d1f9a3..7229899 100644 (file)
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -345,7 +345,7 @@ jQuery.extend({
 
                        // Dereference transport for early garbage collection
                        // (no matter how long the jXHR transport will be used
-                       transport = 0;
+                       transport = undefined;
 
                        // Set readyState
                        jXHR.readyState = status ? 4 : 0;