Remove Object.setPrototypeOf polyfill

Author: Phillip9587

lib/application.js

@@ -25,7 +25,6 @@ var merge = require('utils-merge');
 var resolve = require('path').resolve;
 var once = require('once')
 var Router = require('router');
-var setPrototypeOf = require('setprototypeof')
 
 /**
  * Module variables.
@@ -117,10 +116,10 @@ app.defaultConfiguration = function defaultConfiguration() {
     }
 
     // inherit protos
-    setPrototypeOf(this.request, parent.request)
-    setPrototypeOf(this.response, parent.response)
-    setPrototypeOf(this.engines, parent.engines)
-    setPrototypeOf(this.settings, parent.settings)
+    Object.setPrototypeOf(this.request, parent.request)
+    Object.setPrototypeOf(this.response, parent.response)
+    Object.setPrototypeOf(this.engines, parent.engines)
+    Object.setPrototypeOf(this.settings, parent.settings)
   });
 
   // setup locals
@@ -168,8 +167,8 @@ app.handle = function handle(req, res, callback) {
   res.req = req;
 
   // alter the prototypes
-  setPrototypeOf(req, this.request)
-  setPrototypeOf(res, this.response)
+  Object.setPrototypeOf(req, this.request)
+  Object.setPrototypeOf(res, this.response)
 
   // setup locals
   if (!res.locals) {
@@ -232,8 +231,8 @@ app.use = function use(fn) {
     router.use(path, function mounted_app(req, res, next) {
       var orig = req.app;
       fn.handle(req, res, function (err) {
-        setPrototypeOf(req, orig.request)
-        setPrototypeOf(res, orig.response)
+        Object.setPrototypeOf(req, orig.request)
+        Object.setPrototypeOf(res, orig.response)
         next(err);
       });
     });

package.json

@@ -59,7 +59,6 @@
     "safe-buffer": "5.2.1",
     "send": "^1.1.0",
     "serve-static": "^2.1.0",
-    "setprototypeof": "1.2.0",
     "statuses": "2.0.1",
     "type-is": "^2.0.0",
     "utils-merge": "1.0.1",