fix: add cors to register endpoint

lib/new-admin/admin-server.js

@@ -1,6 +1,7 @@
 const fs = require('fs')
 const express = require('express')
 const https = require('https')
+const cors = require('cors')
 const helmet = require('helmet')
 const cookieParser = require('cookie-parser')
 const { ApolloServer, AuthenticationError } = require('apollo-server-express')
@@ -49,6 +50,9 @@ apolloServer.applyMiddleware({
   }
 })
 
+// cors on app for /api/register endpoint.
+app.use(cors({ credentials: true, origin: devMode && 'https://localhost:3000' }))
+
 app.get('/api/register', (req, res, next) => {
   const otp = req.query.otp