From 760bdb8f00226eed42ea3178facf07bae4d19597 Mon Sep 17 00:00:00 2001
From: Tankred Hase <mail@tankredhase.de>
Date: Wed, 23 Mar 2016 17:27:09 +0800
Subject: [PATCH] Use only standard window.crypto.subtle in gcm.js There is
 currently no support for AES-GCM in IE11 and Safari/iOSqq

---
 src/crypto/gcm.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/crypto/gcm.js b/src/crypto/gcm.js
index 00cef355..d21aefa9 100644
--- a/src/crypto/gcm.js
+++ b/src/crypto/gcm.js
@@ -25,7 +25,7 @@
 import util from '../util.js';
 import config from '../config';
 import asmCrypto from 'asmcrypto-lite';
-const webCrypto = util.getWebCrypto();
+const webCrypto = typeof window !== 'undefined' && window.crypto && window.crypto.subtle; // no GCM support in IE11, Safari 9
 const nodeCrypto = util.getNodeCrypto();
 const Buffer = util.getNodeBuffer();