Nodejs : Redirect URL - url

Question

I'm trying to redirect the url of my app in node.js in this way:
// response comes from the http server
response.statusCode = 302;
response.setHeader("Location", "/page");
response.end();
But the current page is mixed with the new one, it looks strange :| My solution looked totally logical, I don't really know why this happens, but if I reload the page after the redirection it works.
Anyway what's the proper way to do HTTP redirects in node?

Answer 1

Looks like express does it pretty much the way you have. From what I can see the differences are that they push some body content and use an absolute url.
See the express response.redirect method:
https://github.com/visionmedia/express/blob/master/lib/response.js#L335
// Support text/{plain,html} by default
if (req.accepts('html')) {
body = '<p>' + http.STATUS_CODES[status] + '. Redirecting to ' + url + '</p>';
this.header('Content-Type', 'text/html');
} else {
body = http.STATUS_CODES[status] + '. Redirecting to ' + url;
this.header('Content-Type', 'text/plain');
}
// Respond
this.statusCode = status;
this.header('Location', url);
this.end(body);
};

Answer 2

server = http.createServer(
function(req, res)
{
url ="http://www.google.com";
body = "Goodbye cruel localhost";
res.writeHead(301, {
'Location': url,
'Content-Length': body.length,
'Content-Type': 'text/plain' });
res.end(body);
});

Answer 3

Yes it should be full url in setHeader.
res.statusCode = 302;
res.setHeader('Location', 'http://' + req.headers['host'] + ('/' !== req.url)? ( '/' + req.url) : '');
res.end();

Answer 4

What happens if you change it to 307 instead?

Answer 5

This issue may also depend on the type of request you are handling. A POST request cannot be redirected using the header. For example, a first-time visitor from to your app in FB will most-likely be coming via a "signed request" POST and therefore a redirect will not work.