1 files changed, 26 insertions, 0 deletions
diff --git a/devtools/shared/commands/resource/transformers/storage-extension.js b/devtools/shared/commands/resource/transformers/storage-extension.js
new file mode 100644
index 0000000000..3e40bdd6d0
--- /dev/null
+++ b/devtools/shared/commands/resource/transformers/storage-extension.js
@@ -0,0 +1,26 @@
+/* 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/. */
+
+"use strict";
+
+const {
+  TYPES: { EXTENSION_STORAGE },
+} = require("resource://devtools/shared/commands/resource/resource-command.js");
+
+const { Front, types } = require("resource://devtools/shared/protocol.js");
+
+module.exports = function ({ resource, watcherFront, targetFront }) {
+  if (!(resource instanceof Front) && watcherFront) {
+    const { innerWindowId } = resource;
+
+    // it's safe to instantiate the front now, so we do it.
+    resource = types.getType("extensionStorage").read(resource, targetFront);
+    resource.resourceType = EXTENSION_STORAGE;
+    resource.resourceId = `${EXTENSION_STORAGE}-${targetFront.browsingContextID}`;
+    resource.resourceKey = "extensionStorage";
+    resource.innerWindowId = innerWindowId;
+  }
+
+  return resource;
+};