1 files changed, 30 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/lib/requestStorageAccess_helper.js b/browser/extensions/webcompat/lib/requestStorageAccess_helper.js
new file mode 100644
index 0000000000..032225bb78
--- /dev/null
+++ b/browser/extensions/webcompat/lib/requestStorageAccess_helper.js
@@ -0,0 +1,30 @@
+/* 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/. */
+
+/* globals browser */
+
+// Helper for calling the internal requestStorageAccessForOrigin method. The
+// method is called on the first-party document for the third-party which needs
+// first-party storage access.
+browser.runtime.onMessage.addListener(request => {
+  let { requestStorageAccessOrigin, warning } = request;
+  if (!requestStorageAccessOrigin) {
+    return false;
+  }
+
+  // Log a warning to the web console, informing about the shim.
+  console.warn(warning);
+
+  // Call the internal storage access API. Passing false means we don't require
+  // user activation, but will always show the storage access prompt. The user
+  // has to explicitly allow storage access.
+  return document
+    .requestStorageAccessForOrigin(requestStorageAccessOrigin, false)
+    .then(() => {
+      return { success: true };
+    })
+    .catch(() => {
+      return { success: false };
+    });
+});