From 3a064d67967f1409edf18ae999db110a51d51884 Mon Sep 17 00:00:00 2001
From: Bruno Windels <bruno@windels.cloud>
Date: Wed, 29 Sep 2021 19:21:42 +0200
Subject: [PATCH] a IDBRequest when opening the database does not have a source

---
 src/matrix/storage/idb/error.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/matrix/storage/idb/error.ts b/src/matrix/storage/idb/error.ts
index fb602168..abfbe415 100644
--- a/src/matrix/storage/idb/error.ts
+++ b/src/matrix/storage/idb/error.ts
@@ -33,10 +33,10 @@ export class IDBError extends StorageError {
     storeName: string;
     databaseName: string;
 
-    constructor(message: string, sourceOrCursor: IDBIndex | IDBCursor | IDBObjectStore, cause: DOMException | null = null) {
-        const source = "source" in sourceOrCursor ? sourceOrCursor.source : sourceOrCursor;
-        const storeName = _sourceName(source);
-        const databaseName = _sourceDatabase(source);
+    constructor(message: string, sourceOrCursor: IDBIndex | IDBCursor | IDBObjectStore | null, cause: DOMException | null = null) {
+        const source = (sourceOrCursor && "source" in sourceOrCursor) ? sourceOrCursor.source : sourceOrCursor;
+        const storeName = source ? _sourceName(source) : "";
+        const databaseName = source ? _sourceDatabase(source) : "";
         let fullMessage = `${message} on ${databaseName}.${storeName}`;
         if (cause) {
             fullMessage += ": ";