ajax - CORS Logging into an expressjs/passportjs app 401 Unauthorized -

i converting web app cordova app thing stopping me fact app expressjs based, since cordova requires index.html need use cors render app , provide login session.

i can use ajax/cors regular pages when comes authorization stuck.

i use passportjs authenticate on post route app.post('/login', passport.authenticate('local-login')); on client side cordova app make ajax call make request me.

$('body').on('submit', '#login', function(e){     e.preventdefault();      var formdata = $(this).serialize();     console.log(formdata);      $.ajax({         url: "http://mysite.io:3300/login",         data: json.stringify(formdata),         type: "post",         crossdomain: true,         datatype: "json",         async: true,         success: function(response){             alert('succeeded!');             console.log(response);             alert(response);         },         failure: function(message){             alert("failed");             console.log(message);             alert(message);         }     });  }); 

when make post request 401 unauthorized have been doing research on that, still not sure why it's not authorizing?

from passport docs:

by default, if authentication fails, passport respond 401 unauthorized status, , additional route handlers not invoked.

the username/password combination you're posting not valid.