improve negotiateEnconding

encoding_negotiator.js

@@ -7,24 +7,10 @@ var Negotiator = require('negotiator')
  */
 var hasBrotliSupport = 'createBrotliCompress' in zlib
 
-function negotiateEncoding (req, encodings_) {
+function negotiateEncoding (req, encodings) {
   var negotiator = new Negotiator(req)
-  var encodings = encodings_
 
-  // support flattened arguments
-  if (encodings && !Array.isArray(encodings)) {
-    encodings = new Array(arguments.length)
-    for (var i = 0; i < encodings.length; i++) {
-      encodings[i] = arguments[i]
-    }
-  }
-
-  // no encodings, return all requested encodings
-  if (!encodings || encodings.length === 0) {
-    return negotiator.encodings()
-  }
-
-  return negotiator.encodings(encodings, hasBrotliSupport ? ['br'] : ['gzip'])[0] || false
+  return negotiator.encodings(encodings, hasBrotliSupport ? ['br'] : ['gzip'])[0]
 }
 
 module.exports.hasBrotliSupport = hasBrotliSupport