Merge pull request #473 from matrix-org/rav/no_require_indexeddb

Fix failure on Tor browser

browser-index.js

@@ -1,6 +1,8 @@
 var matrixcs = require("./lib/matrix");
 matrixcs.request(require("browser-request"));
 
+// if our browser (appears to) support indexeddb, use an indexeddb crypto store.
+if (global.indexedDB) {
     matrixcs.setCryptoStoreFactory(
         function() {
             return new matrixcs.IndexedDBCryptoStore(
@@ -8,6 +10,7 @@ matrixcs.setCryptoStoreFactory(
             );
         }
     );
+}
 
 module.exports = matrixcs; // keep export for browserify package deps
 global.matrixcs = matrixcs;