1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/infrastructure/fetching-resources/crossorigin-enumerated-ascii-case-insensitive.html b/testing/web-platform/tests/html/infrastructure/fetching-resources/crossorigin-enumerated-ascii-case-insensitive.html
new file mode 100644
index 0000000000..7207d43c60
--- /dev/null
+++ b/testing/web-platform/tests/html/infrastructure/fetching-resources/crossorigin-enumerated-ascii-case-insensitive.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<link rel="help" href="https://html.spec.whatwg.org/#cors-settings-attribute">
+<link rel="help" href="https://html.spec.whatwg.org/#enumerated-attribute">
+<meta name="assert" content="@crossorigin values are ASCII case-insensitive">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<img crossorigin="use-credentials">
+<img crossorigin="UsE-cReDenTiAlS">
+<img crossorigin="uſe-credentialſ">
+<img crossorigin="anonymous">
+<img crossorigin="AnOnYmOuS">
+<img crossorigin="anonymouſ">
+<script>
+const img = document.querySelectorAll("img");
+
+test(() => {
+  assert_equals(img[0].crossOrigin, "use-credentials", "lowercase valid");
+  assert_equals(img[1].crossOrigin, "use-credentials", "mixed case valid");
+  assert_equals(img[2].crossOrigin, "anonymous", "non-ASCII invalid");
+}, "keyword use-credentials");
+
+test(() => {
+  assert_equals(img[3].crossOrigin, "anonymous", "lowercase valid");
+
+  // vacuous: the invalid value default is currently anonymous, so even if the
+  // UA treats this as invalid, the observable behaviour would still be correct
+  assert_equals(img[4].crossOrigin, "anonymous", "mixed case valid");
+
+  // vacuous: the invalid value default is currently anonymous, so even if the
+  // UA treats this as valid, the observable behaviour would still be correct
+  assert_equals(img[5].crossOrigin, "anonymous", "non-ASCII invalid");
+}, "keyword anonymous");
+</script>