ASP.NET identity 2.2.1 returnUrl with hash value ?

Question

User592395570 posted

I m using identity to do facebook login 

when facebook callback and my server sign in with the user and finally redirect to "ReturnUrl" .

https://localhost:44301/#_=_  <-- the url auto include the hash sysbol  #_=_ 

can somebody tell me why and how to remove it.

Answer 1

User614698185 posted

Hi keatkeat,

You could use Javascript to fix it:

<script type="text/javascript">
    if (window.location.hash && window.location.hash == '#_=_') {
        if (window.history && history.pushState) {
            window.history.pushState("", document.title, window.location.pathname);
        } else {
            // Prevent scrolling by storing the page's current scroll offset
            var scroll = {
                top: document.body.scrollTop,
                left: document.body.scrollLeft
            };
            window.location.hash = '';
            // Restore the scroll offset, should be flicker free
            document.body.scrollTop = scroll.top;
            document.body.scrollLeft = scroll.left;
        }
    }
</script>

For more information, please see:

http://stackoverflow.com/questions/7131909/facebook-callback-appends-to-return-url

https://github.com/jaredhanson/passport-facebook/issues/12#issuecomment-5913711

Best Regards,

Candice Zhou

Answer 2

User592395570 posted

hi Candice Zhou,

Thank you for reply. 

1 more question is why it happend ?

do you mean this is a facebook issue not ASP.NET right ? 

Regards

Yam

Answer 3

User614698185 posted

Hi Yam,

keatkeat

do you mean this is a facebook issue not ASP.NET right ? 

From this link: https://developers.facebook.com/blog/post/552/

It says: We started adding a fragment #_=_ to the redirect_uri when this field is left blank. Please ensure that your app can handle this behavior.

Best Regards,

Candice Zhou

Answer 4

User592395570 posted

Thank a lot for you !!

Regards 

Yam