1 files changed, 16 insertions, 0 deletions
diff --git a/comm/suite/modules/OfflineAppCacheHelper.jsm b/comm/suite/modules/OfflineAppCacheHelper.jsm
new file mode 100644
index 0000000000..840012b87c
--- /dev/null
+++ b/comm/suite/modules/OfflineAppCacheHelper.jsm
@@ -0,0 +1,16 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var EXPORTED_SYMBOLS = ["OfflineAppCacheHelper"];
+
+const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+var OfflineAppCacheHelper = {
+  clear() {
+    var appCacheStorage = Services.cache2.appCacheStorage(Services.loadContextInfo.default, null);
+    try {
+      appCacheStorage.asyncEvictStorage(null);
+    } catch (er) {}
+  }
+};