Angular2 , How to prevent from HTTP redirection

Question

I am trying to simulating user login by angular2 Http. let describe situation as bellow.
i have a php application that users can login throw http://sample.com/login.php url (a form exist with username and password input, user should fill inputs and press submit button) and if login is success, they redirect to http://sample.com/dashboard.php.
so i create a Http post with a form data that has "username" and "password" within. and set Http header content-type as application/x-www-form-urlencoded.
login works fine and request automatically redirect to http://sample.com/dashboard.php .
problem is that i need to access first request response header(http://sample.com/login.php), but the Http response me the second request response header (http://sample.com/dashboard.php).
is that any way to prevent Http from redirecting? or throw error on status 302 ?

var headers = new Headers({'Content-Type':'application/x-www-form-urlencoded'}); var options = new RequestOptions({ headers: headers }); Http.post("http://sample.com/login.php",'username=admin&password=123' , options) .subscribe(success => { // success and return redirected response // response of http://sample.com/dashboard.php }, error => { // error handler } );

@Shadow Wizard I would not consider this an exact duplicate. This question is specific to Angular 2, so marking this as a duplicate would imply that everyone stumbling upon this question do know that Angular 2's HTTP service uses XMLHttpRequest under the hood. I highly doubt this - otherwise the >1000 viewers of this question could have searched for HXMLHttpRequest directly and would have never landed here. IMO the right answer is that Angular's HTTP service uses XMLHttpRequest (along with a link to the question you marked as duplicate) — emrass
– emrass, Commented Sep 30, 2017 at 11:21
@emrass thanks for the thorough explanation, you raise valid points. Reopened. — user447356
– user447356, Commented Sep 30, 2017 at 16:03

zpul · Accepted Answer · 2016-06-07 06:49:15Z

2

This is not possible because XMLHttpRequest (low level API) does not expose such a method.

For more details look at this:

Prevent redirection of Xmlhttprequest

answered Jun 7, 2016 at 6:49

zpul

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1 Comment

user447356 Over a year ago

That's a duplicate, next time better flag.

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