[Murali]

To redirect domain from plain http or https:// to https://www

Below code is in REACTJS express server file

app.all(/.*/, function(req, res, next) {
  var host = req.header("host");
  if (host.match(/^www\..*/i)) {
    next();
  } else {
    res.redirect(301, "http://www." + host + req.path);
  }
});

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