From 4bd382c5df206f328b35ca23579904f603b84f0b Mon Sep 17 00:00:00 2001
From: Jason Stafford <jason.stafford@scrycollective.com>
Date: Fri, 2 Feb 2018 15:49:46 -0800
Subject: [PATCH] fix failing test (Property length of object returned by
 SupportedLocales is writable) (#298)

---
 src/9.negotiation.js | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/9.negotiation.js b/src/9.negotiation.js
index b2d75d650..9740a07e7 100644
--- a/src/9.negotiation.js
+++ b/src/9.negotiation.js
@@ -607,8 +607,16 @@ export function /*9.2.8 */SupportedLocales (availableLocales, requestedLocales,
             writable: false, configurable: false, value: subset[P]
         });
     }
-    
-    // 5. Return subset
+
+    // 5. repeat the above operation for the length property,
+    //    since length is not enumerable in a List.
+    //    This is by design as it matches the behavior of Array.
+    defineProperty(subset, 'length', {
+        writable: false, configurable: false, value: subset.length
+    });
+
+
+    // 6. Return subset
     return subset;
 }