Hi Jitendra,
I tried with Fiddler tool. Please find the observation below:-
Please note in SMP I have Authorization as Basic and Authentication as HTTP/HTTPS.
The rest all are same,as shown in the above screenshots.
1) Request:-
Here under Raw I had entered the lines of code required for registration.
2) Response:-
Here I am not receiving any pop up to enter the credentials for the Security Profile Created ie "targpool".
Please help.