1 files changed, 23 insertions, 0 deletions
diff --git a/testing/web-platform/tests/FileAPI/url/unicode-origin.sub.html b/testing/web-platform/tests/FileAPI/url/unicode-origin.sub.html
new file mode 100644
index 0000000000..2c4921c034
--- /dev/null
+++ b/testing/web-platform/tests/FileAPI/url/unicode-origin.sub.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>FileAPI Test: Verify origin of Blob URL</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<script>
+async_test(t => {
+  const frame = document.createElement('iframe');
+  self.addEventListener('message', t.step_func(e => {
+      if (e.source != frame.contentWindow) return;
+      const url = e.data.url;
+      assert_false(url.includes('天気の良い日'),
+          'Origin should be ascii rather than unicode');
+      assert_equals(new URL(url).origin, e.origin,
+          'Origin of URL should match origin of frame');
+      assert_true(url.startsWith('blob:{{location[scheme]}}://xn--'));
+      t.done();
+    }));
+  frame.src = '{{location[scheme]}}://{{domains[天気の良い日]}}:{{location[port]}}/FileAPI/support/url-origin.html';
+  document.body.appendChild(frame);
+}, 'Verify serialization of non-ascii origin in Blob URLs');
+</script>