您可以通过将返回 url 存储在会话中来实现此效果。
// server
var app, express;
express = require('express');
app = express();
app.configure(function() {
app.use(express.cookieSession({secret: 'shh'}));
});
app.get('/auth/twitter', function(req, res, next) {
// to return to '/#/returnHash', request this url:
// http://example.com/auth/twitter?return_url=%2F%23%2FreturnHash
// on the client you can get the hash value like this:
// encodeURIComponent("/"+window.location.hash)
req.session.return_url = req.query.return_url;
next();
}, passport.authenticate('twitter'));
app.get('/auth/twitter/callback', passport.authenticate('twitter', {
failureRedirect: '/login'
}), function(req, res) {
var url = req.session.return_url;
delete req.session.return_url;
// redirects to /#/returnHash
res.redirect(url);
});