1 files changed, 9 insertions, 0 deletions
diff --git a/testing/web-platform/tests/workers/support/ImportScriptsNosniffErr.js b/testing/web-platform/tests/workers/support/ImportScriptsNosniffErr.js
new file mode 100644
index 0000000000..22dc9c1ba5
--- /dev/null
+++ b/testing/web-platform/tests/workers/support/ImportScriptsNosniffErr.js
@@ -0,0 +1,9 @@
+importScripts('/resources/testharness.js');
+
+test(t => {
+  assert_throws_dom('NetworkError', () => {
+    importScripts("nosiniff-error-worker.py");
+  });
+}, "importScripts throws on 'nosniff' violation");
+
+done();