diff --git a/src/withStreamingServer/convertStream.js b/src/withStreamingServer/convertStream.js
index 4678b82..d5ec471 100644
--- a/src/withStreamingServer/convertStream.js
+++ b/src/withStreamingServer/convertStream.js
@@ -6,11 +6,11 @@ function buildProxyUrl(streamingServerURL, streamURL, requestHeaders, responseHe
     var parsedStreamURL = new URL(streamURL);
     var proxyOptions = new URLSearchParams();
     proxyOptions.set('d', parsedStreamURL.origin);
-    Object.entries(requestHeaders).forEach(function([header, value]) {
-        proxyOptions.append('h', header + ':' + value);
+    Object.entries(requestHeaders).forEach(function(entry) {
+        proxyOptions.append('h', entry[0] + ':' + entry[1]);
     });
-    Object.entries(responseHeaders).forEach(function([header, value]) {
-        proxyOptions.append('r', header + ':' + value);
+    Object.entries(responseHeaders).forEach(function(entry) {
+        proxyOptions.append('r', entry[0] + ':' + entry[1]);
     });
     return url.resolve(streamingServerURL, '/proxy/' + proxyOptions.toString() + parsedStreamURL.pathname) + parsedStreamURL.search;
 }