1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/resources/no-custom-header-on-preflight.py b/testing/web-platform/tests/xhr/resources/no-custom-header-on-preflight.py
new file mode 100644
index 0000000000..835c12813d
--- /dev/null
+++ b/testing/web-platform/tests/xhr/resources/no-custom-header-on-preflight.py
@@ -0,0 +1,27 @@
+def main(request, response):
+    def getState(token):
+        server_state = request.server.stash.take(token)
+        if not server_state:
+            return b"Uninitialized"
+        return server_state
+
+    def setState(state, token):
+        request.server.stash.put(token, state)
+
+    response.headers.set(b"Access-Control-Allow-Origin", b"*")
+    response.headers.set(b"Access-Control-Allow-Headers", b"x-test")
+    response.headers.set(b"Access-Control-Max-Age", 0)
+    token = request.GET.first(b"token", None)
+
+    if request.method == u"OPTIONS":
+        if request.headers.get(b"x-test"):
+            response.content = b"FAIL: Invalid header in preflight request."
+            response.status = 400
+        else:
+            setState(b"PASS", token)
+    else:
+        if request.headers.get(b"x-test"):
+            response.content = getState(token)
+        else:
+            response.content = b"FAIL: X-Test header missing in request"
+            response.status = 400