1 files changed, 18 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/resources/access-control-preflight-request-header-sorted.py b/testing/web-platform/tests/xhr/resources/access-control-preflight-request-header-sorted.py
new file mode 100644
index 0000000000..4e708a9d6b
--- /dev/null
+++ b/testing/web-platform/tests/xhr/resources/access-control-preflight-request-header-sorted.py
@@ -0,0 +1,18 @@
+def main(request, response):
+    response.headers.set(b'Cache-Control', b'no-store')
+    response.headers.set(b'Access-Control-Allow-Origin',
+                         request.headers.get(b'origin'))
+
+    headers = b'x-custom-s,x-custom-test,x-custom-u,x-custom-ua,x-custom-v'
+    if request.method == u'OPTIONS':
+        response.headers.set(b'Access-Control-Max-Age', b'0')
+        response.headers.set(b'Access-Control-Allow-Headers', headers)
+        # Access-Control-Request-Headers should be sorted.
+        if headers != request.headers.get(b'Access-Control-Request-Headers'):
+            response.status = 400
+    else:
+        if request.headers.get(b'x-custom-s'):
+            response.content = b'PASS'
+        else:
+            response.status = 400
+            response.content = b'FAIL'