1 files changed, 33 insertions, 0 deletions
diff --git a/testing/web-platform/tests/web-bundle/subresource-loading/not-found.https.tentative.html b/testing/web-platform/tests/web-bundle/subresource-loading/not-found.https.tentative.html
new file mode 100644
index 0000000000..efcb6bc9fb
--- /dev/null
+++ b/testing/web-platform/tests/web-bundle/subresource-loading/not-found.https.tentative.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Web Bundle fetching failed due to not found error</title>
+<link
+  rel="help"
+  href="https://github.com/WICG/webpackage/blob/main/explainers/subresource-loading.md"
+/>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/test-helpers.js"></script>
+<body>
+  <script>
+    setup(() => {
+      assert_true(HTMLScriptElement.supports("webbundle"));
+    });
+
+    // This test uses a non-existing WebBundle,
+    //   /web-bundle/resources/wbn/cors/non-existing.wbn.
+    // The intent of this test is to check if failing to fetch a WebBundle due to
+    // not found error also makes subresource fetch requests fail.
+    promise_test(async () => {
+      const prefix = "/web-bundle/resources/wbn/";
+      const resources = [prefix + "resource.js"];
+      const element = await createWebBundleElement(
+        prefix + "non-existing.wbn",
+        resources
+      );
+      document.body.appendChild(element);
+
+      // Can not fetch a subresource because Web Bundle fetch failed.
+      await fetchAndWaitForReject(prefix + "resource.js");
+    }, "Subresource fetch requests for non-existing Web Bundle should fail.");
+  </script>
+</body>