diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index fd59fcd9568..f3346144921 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -28859,7 +28859,16 @@
   },
   "local_changes": {
     "deleted": [],
-    "items": {},
+    "items": {
+      "testharness": {
+        "websockets/Close-clamp.htm": [
+          {
+            "path": "websockets/Close-clamp.htm",
+            "url": "/websockets/Close-clamp.htm"
+          }
+        ]
+      }
+    },
     "reftest_nodes": {}
   },
   "reftest_nodes": {
diff --git a/tests/wpt/metadata/websockets/Close-clamp.htm.ini b/tests/wpt/metadata/websockets/Close-clamp.htm.ini
new file mode 100644
index 00000000000..90b3ad8f67c
--- /dev/null
+++ b/tests/wpt/metadata/websockets/Close-clamp.htm.ini
@@ -0,0 +1,5 @@
+[Close-clamp.htm]
+  type: testharness
+  [WebSocket#close(2**16+1000)]
+    expected: FAIL
+
diff --git a/tests/wpt/web-platform-tests/websockets/Close-clamp.htm b/tests/wpt/web-platform-tests/websockets/Close-clamp.htm
new file mode 100644
index 00000000000..d6870ea2626
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/Close-clamp.htm
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<title>WebSocket#close(2**16+1000)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="websocket.js?pipe=sub"></script>
+<div id="log"></div>
+<script>
+test(function() {
+    var ws = CreateWebSocket(false, false, false);
+    assert_throws("InvalidAccessError", function () {
+        ws.close(0x10000 + 1000);
+    });
+});
+</script>
