1 files changed, 23 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_show_subresource_security_errors.js b/devtools/client/webconsole/test/browser/browser_webconsole_show_subresource_security_errors.js
new file mode 100644
index 0000000000..cbd94edb26
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_show_subresource_security_errors.js
@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Ensure non-toplevel security errors are displayed
+
+"use strict";
+
+const TEST_URI =
+  "data:text/html;charset=utf-8,<!DOCTYPE html>Web Console subresource STS warning test";
+const TEST_DOC =
+  "https://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-subresource-security-error.html";
+const SAMPLE_MSG = "specified a header that could not be parsed successfully.";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+  await clearOutput(hud);
+  await navigateTo(TEST_DOC);
+
+  await waitFor(() => findWarningMessage(hud, SAMPLE_MSG));
+
+  ok(true, "non-toplevel security warning message was displayed");
+});