From 5a294c8646452d6e49339d145faeae4f31dcd0fc Mon Sep 17 00:00:00 2001
From: Greg Thornton
Date: Sun, 23 Jun 2013 14:04:59 -0500
Subject: feat(Angular.js): skip JSON.stringify for undefined

Return early in `angular.toJson` if the object to be stringified is `undefined`.
IE8 stringifies `undefined` to `'undefined'` whereas other browsers return
`undefined`. This normalizes behavior and passes currently broken unit tests
in IE8.
---
 src/Angular.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/Angular.js')

diff --git a/src/Angular.js b/src/Angular.js
index 589929a4..746f1134 100644
--- a/src/Angular.js
+++ b/src/Angular.js
@@ -775,9 +775,10 @@ function toJsonReplacer(key, value) {
  *
  * @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.
  * @param {boolean=} pretty If set to true, the JSON output will contain newlines and whitespace.
- * @returns {string} Jsonified string representing `obj`.
+ * @returns {string|undefined} Jsonified string representing `obj`.
  */
 function toJson(obj, pretty) {
+  if (typeof obj === 'undefined') return undefined;
   return JSON.stringify(obj, toJsonReplacer, pretty ? '  ' : null);
 }
 
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