1 files changed, 41 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/api/cors/cors-expose-star.sub.any.js b/testing/web-platform/tests/fetch/api/cors/cors-expose-star.sub.any.js
new file mode 100644
index 0000000000..340e99ab5f
--- /dev/null
+++ b/testing/web-platform/tests/fetch/api/cors/cors-expose-star.sub.any.js
@@ -0,0 +1,41 @@
+// META: script=../resources/utils.js
+
+const url = "http://{{host}}:{{ports[http][1]}}" + dirname(location.pathname) + RESOURCES_DIR + "top.txt",
+      sharedHeaders = "?pipe=header(Access-Control-Expose-Headers,*)|header(Test,X)|header(Set-Cookie,X)|header(*,whoa)|"
+
+promise_test(() => {
+  const headers = "header(Access-Control-Allow-Origin,*)"
+  return fetch(url + sharedHeaders + headers).then(resp => {
+    assert_equals(resp.status, 200)
+    assert_equals(resp.type , "cors")
+    assert_equals(resp.headers.get("test"), "X")
+    assert_equals(resp.headers.get("set-cookie"), null)
+    assert_equals(resp.headers.get("*"), "whoa")
+  })
+}, "Basic Access-Control-Expose-Headers: * support")
+
+promise_test(() => {
+  const origin = location.origin, // assuming an ASCII origin
+        headers = "header(Access-Control-Allow-Origin," + origin + ")|header(Access-Control-Allow-Credentials,true)"
+  return fetch(url + sharedHeaders + headers, { credentials:"include" }).then(resp => {
+    assert_equals(resp.status, 200)
+    assert_equals(resp.type , "cors")
+    assert_equals(resp.headers.get("content-type"), "text/plain") // safelisted
+    assert_equals(resp.headers.get("test"), null)
+    assert_equals(resp.headers.get("set-cookie"), null)
+    assert_equals(resp.headers.get("*"), "whoa")
+  })
+}, "* for credentialed fetches only matches literally")
+
+promise_test(() => {
+  const headers =  "header(Access-Control-Allow-Origin,*)|header(Access-Control-Expose-Headers,set-cookie\\,*)"
+  return fetch(url + sharedHeaders + headers).then(resp => {
+    assert_equals(resp.status, 200)
+    assert_equals(resp.type , "cors")
+    assert_equals(resp.headers.get("test"), "X")
+    assert_equals(resp.headers.get("set-cookie"), null)
+    assert_equals(resp.headers.get("*"), "whoa")
+  })
+}, "* can be one of several values")
+
+done();