From 65a774786444065eaa59a727e9c8851ef2bb40d5 Mon Sep 17 00:00:00 2001
From: Atte Lautanala <atte.lautanala@gmail.com>
Date: Sat, 22 Oct 2016 18:37:36 +0300
Subject: [PATCH] Implement response API Clone step 1

---
 components/script/dom/response.rs                             | 4 +++-
 tests/wpt/metadata/fetch/api/response/response-clone.html.ini | 3 ---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/components/script/dom/response.rs b/components/script/dom/response.rs
index a1226204418..7607cacc972 100644
--- a/components/script/dom/response.rs
+++ b/components/script/dom/response.rs
@@ -298,7 +298,9 @@ impl ResponseMethods for Response {
     // https://fetch.spec.whatwg.org/#dom-response-clone
     fn Clone(&self) -> Fallible<Root<Response>> {
         // Step 1
-        // TODO: This step relies on body and stream, which are still unimplemented.
+        if self.is_locked() || self.body_used.get() {
+            return Err(Error::Type("cannot clone a disturbed response".to_string()));
+        }
 
         // Step 2
         let new_response = Response::new(&self.global());
diff --git a/tests/wpt/metadata/fetch/api/response/response-clone.html.ini b/tests/wpt/metadata/fetch/api/response/response-clone.html.ini
index ecd4656a2dc..dc3c577e415 100644
--- a/tests/wpt/metadata/fetch/api/response/response-clone.html.ini
+++ b/tests/wpt/metadata/fetch/api/response/response-clone.html.ini
@@ -6,9 +6,6 @@
   [Check cloned response's body]
     expected: FAIL
 
-  [Cannot clone a disturbed response]
-    expected: FAIL
-
   [Cloned responses should provide the same data]
     expected: FAIL