CryptStorage: catch decrypt exception

src/jio.storage/cryptstorage.js

@@ -149,6 +149,8 @@
 
             coded = coded.currentTarget.result;
             initializaton_vector = new Uint8Array(coded.slice(0, 12));
+            return new RSVP.Queue()
+              .push(function () {
                 return crypto.subtle.decrypt({
                   name : "AES-GCM",
                   iv : initializaton_vector
@@ -158,14 +160,14 @@
               .push(function (arr) {
                 //arraybuffer->string
                 arr = String.fromCharCode.apply(null, new Uint8Array(arr));
-            try {
                 return jIO.util.dataURItoBlob(arr);
-            } catch (error) {
+              })
+              .push(undefined, function (error) {
                 if (error instanceof DOMException) {
                   return blob;
                 }
                 throw error;
-            }
+              });
           });
       });
   };