Create and use proxy server middleware

Because
- Get over of CORS and mixed content browser errors

proxy/index.js

@@ -0,0 +1,50 @@
+import express from 'express';
+import bodyParser from 'body-parser';
+import axios from 'axios';
+
+const app = express();
+
+app.use(bodyParser.json());
+
+app.use((req, res, next) => {
+  res.header('Access-Control-Allow-Origin', '*');
+  next();
+});
+
+app.post('/', async function(req, res) {
+  const {method, url, auth, headers, data} = req.body;
+  try {
+    const payload = await axios({
+      method,
+      url,
+      auth,
+      headers,
+      data
+    })
+
+    return res.json({
+        data: payload.data,
+        status: payload.status,
+        statusText: payload.statusText,
+        headers: payload.headers,
+    });
+
+  } catch(error) {
+    if(error.response) {
+      const errorResponse = error.response;
+      return res.json({
+        data: errorResponse.data,
+        status: errorResponse.status,
+        statusText: errorResponse.statusText,
+        headers: errorResponse.headers,
+      });
+    } else {
+      return res.status(500).send();
+    }
+  }
+});
+
+export default {
+  path: '/proxy',
+  handler: app
+}