From 24699ee8f04c1f1459be1d36207e654421d58ff0 Mon Sep 17 00:00:00 2001
From: Caitlin Potter
Date: Tue, 4 Feb 2014 18:34:23 -0500
Subject: fix($http): ignore xhr.responseType setter exception if value is
 "json"

WebKit added support for the json responseType value on 09/03/2013
https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are known to throw when
setting the value "json" as the response type. Other older browsers implementing the responseType.
Other browsers with infrequent update cycles may also be affected.

The json responseType value can be ignored if not supported, because JSON payloads are parsed on the
client-side regardless.

Closes #6115
Closes #6122
---
 src/ng/httpBackend.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/ng/httpBackend.js b/src/ng/httpBackend.js
index 11e1b999..efe72060 100644
--- a/src/ng/httpBackend.js
+++ b/src/ng/httpBackend.js
@@ -107,7 +107,20 @@ function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDoc
       }
 
       if (responseType) {
-        xhr.responseType = responseType;
+        try {
+          xhr.responseType = responseType;
+        } catch (e) {
+          // WebKit added support for the json responseType value on 09/03/2013
+          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are
+          // known to throw when setting the value "json" as the response type. Other older
+          // browsers implementing the responseType 
+          //
+          // The json response type can be ignored if not supported, because JSON payloads are
+          // parsed on the client-side regardless.
+          if (responseType !== 'json') {
+            throw e;
+          }
+        }
       }
 
       xhr.send(post || null);
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