fixed bug for multiple time injection

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jai-body-parser",
-  "version": "1.1.3",
+  "version": "1.1.4",
   "description": "Jai body parser is a middleware for node.js that parses incoming request body in a middleware before your application’s request handlers are called.",
   "keywords": [
     "body parser",