From f2a67f04f95ce68cf5da0f6c7ea50aa00ff2a37e Mon Sep 17 00:00:00 2001
From: Chi Vinh Le <vinh@wikiwi.io>
Date: Fri, 18 Aug 2017 22:35:13 +0700
Subject: [PATCH] Only use Proxy when available

---
 client/coral-framework/helpers/plugins.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client/coral-framework/helpers/plugins.js b/client/coral-framework/helpers/plugins.js
index 57caf2c46..3173115c2 100644
--- a/client/coral-framework/helpers/plugins.js
+++ b/client/coral-framework/helpers/plugins.js
@@ -45,8 +45,10 @@ export function isSlotEmpty(slot, reduxState, props = {}, queryData = {}) {
 // Memoize the warnings so we only show them once.
 const memoizedWarnings = [];
 
+// withWarnings decorates the props of queryData with a proxy that
+// prints a warning when accessing deeper props.
 function withWarnings(component, queryData) {
-  if (process.env.NODE_ENV !== 'production') {
+  if (process.env.NODE_ENV !== 'production' && window.Proxy) {
 
     // Show warnings when accessing queryData only when not in production.
     return mapValues(queryData, (value, key) => {