Res.redirect ('url') cross-domain error

Question

Res.redirect ('url') cross-domain error

I am making a cross-domain request (client-side and server-side). in server.js I added this code and the req cross domain is working fine

function setAcceptsHeader(req, res, next) {
    'use strict';
    res.setHeader('Access-Control-Allow-Origin', '*');
    next();enter code here
}

app.options('*', function (req, res) {
    'use strict';
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Credentials', true);
    res.header('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS');
    res.header('Access-Control-Allow-Headers', 'Content-Type');
    res.status(200).end();
});

The problem is that I added req.redirect () to server.js, im getting an error XMLHttpRequest cannot load http: // localhost: 1214 / # / about . The requested resource does not have an Access-Control-Allow-Origin header. Therefore, the initial value of "null" is not allowed.

app.get('/users/:email',setAcceptsHeader, function (req, res) {
    User.findOne({email:req.params.email}, function (err, post) {
      if(!post){
        res.json({error:'item not found'});
      }
      else{
        res.redirect('http://localhost:1214/#/about');//not working for me
      }
  });