Merge pull request #12 from wearereasonablepeople/renan/cors

Add cors to files proxy

Author: renanborgez

lib/proxy-files.js

@@ -6,11 +6,22 @@ const pump = require('pump');
 
 const {paintStatus, log, withTimer, immediately} = require('./utils');
 
+const headers = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Methods': 'OPTIONS, POST, GET, PUT, DELETE',
+};
+
 const run = ({port, directory, fileExt = 'json', keepExtensions = true, slowMode = false}) => {
   const invoke = slowMode ? withTimer : immediately;
   const filesProxy = http.createServer();
 
   const files = (req, res) => {
+    if (req.method === 'OPTIONS') {
+      res.writeHead(204, headers);
+      res.end();
+      return;
+    }
+
     const urlFile = req.url.split('/').splice(-1).pop() || `index.${fileExt}`;
     const urlFileExt = urlFile.indexOf('.') > -1 ? urlFile.split('.').splice(-1).pop() : null;
     const urlFileName = urlFile.split(`.${urlFileExt}`)[0];
@@ -24,6 +35,8 @@ const run = ({port, directory, fileExt = 'json', keepExtensions = true, slowMode
     fs.exists(filePath, exist => {
       const status = exist ? 200 : 404;
       const paintedStatus = paintStatus(status);
+      res.writeHead(status, headers);
+
       if (exist) {
         const stream = fs.createReadStream(filePath);
         invoke(() => pump(stream, res, log(`${paintedStatus} ${chalk.bold(method)} ${filePath}`)));

package.json

@@ -1,6 +1,6 @@
 {
   "name": "warp-proxy",
-  "version": "1.3.5",
+  "version": "1.4.0",
   "description": "Proxy requests or return mocks from local files instead",
   "main": "index.js",
   "scripts": {