fix(ext/webstorage): make web storages re-assignable (#16661)

1 files changed, 13 insertions, 0 deletions

diff --git a/cli/tests/unit/webstorage_test.ts b/cli/tests/unit/webstorage_test.ts
new file mode 100644
index 000000000..df32e9edb
--- /dev/null
+++ b/cli/tests/unit/webstorage_test.ts
@@ -0,0 +1,13 @@
+// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+// deno-lint-ignore-file no-explicit-any
+
+import { assert } from "./test_util.ts";
+
+Deno.test({ permissions: "none" }, function webStoragesReassignable() {
+  // Can reassign to web storages
+  globalThis.localStorage = 1 as any;
+  globalThis.sessionStorage = 1 as any;
+  // The actual values don't change
+  assert(globalThis.localStorage instanceof globalThis.Storage);
+  assert(globalThis.sessionStorage instanceof globalThis.Storage);
+});