From 8ef947722f940d20191d30d5ceda2421d523095e Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Thu, 22 Jun 2017 07:49:28 +0100
Subject: [PATCH] Fail gracefully on browsers without indexeddb

If we don't have indexeddb at all, don't try to make an indexeddb crypto store.
---
 browser-index.js | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/browser-index.js b/browser-index.js
index b6b8541a2..71b81f3ae 100644
--- a/browser-index.js
+++ b/browser-index.js
@@ -1,13 +1,16 @@
 var matrixcs = require("./lib/matrix");
 matrixcs.request(require("browser-request"));
 
-matrixcs.setCryptoStoreFactory(
-    function() {
-        return new matrixcs.IndexedDBCryptoStore(
-            global.indexedDB, "matrix-js-sdk:crypto"
-        );
-    }
-);
+// if our browser (appears to) support indexeddb, use an indexeddb crypto store.
+if (global.indexedDB) {
+    matrixcs.setCryptoStoreFactory(
+        function() {
+            return new matrixcs.IndexedDBCryptoStore(
+                global.indexedDB, "matrix-js-sdk:crypto"
+            );
+        }
+    );
+}
 
 module.exports = matrixcs; // keep export for browserify package deps
 global.matrixcs = matrixcs;