Use safe-buffer in place of new Buffer.

package.json

@@ -26,12 +26,13 @@
     "duplexify": "^3.2.0",
     "inherits": "^2.0.1",
     "readable-stream": "^2.2.0",
+    "safe-buffer": "^5.0.1",
     "ws": "^2.2.3",
     "xtend": "^4.0.0"
   },
   "devDependencies": {
     "beefy": "^2.1.1",
-    "browserify": "^5.11.1",
+    "browserify": "^14.0.0",
     "concat-stream": "^1.4.7",
     "tape": "^2.14.0"
   },

stream.js

@@ -3,6 +3,7 @@
 var Transform = require('readable-stream').Transform
 var duplexify = require('duplexify')
 var WS = require('ws')
+var Buffer = require('safe-buffer').Buffer
 
 module.exports = WebSocketStream
 
@@ -154,8 +155,8 @@ function WebSocketStream(target, protocols, options) {
 
   function onmessage(event) {
     var data = event.data
-    if (data instanceof ArrayBuffer) data = new Buffer(new Uint8Array(data))
-    else data = new Buffer(data)
+    if (data instanceof ArrayBuffer) data = Buffer.from(new Uint8Array(data))
+    else data = Buffer.from(data, 'utf8')
     proxy.push(data)
   }
 
@@ -168,7 +169,7 @@ function WebSocketStream(target, protocols, options) {
     var buffers = new Array(chunks.length)
     for (var i = 0; i < chunks.length; i++) {
       if (typeof chunks[i].chunk === 'string') {
-        buffers[i] = new Buffer(chunks[i], 'utf8') // TODO use safe-buffer
+        buffers[i] = Buffer.from(chunks[i], 'utf8')
       } else {
         buffers[i] = chunks[i].chunk
       }