Api.twitter.com/login/error not found


#1

Hello!
I want to implement Twitter functionallity in my Windows Phone 8.1 app.
After I get request token, I form url and open it in web browser:
https://api.twitter.com/oauth/authorize?oauth_token=[request_token_here]

  1. If I open this url in browser on desktop and input invalid email or password, it redirects me to https://twitter.com/login/error?.… Thats OK.

  2. If I open this url in browser on Windows Phone emulator and input invalid email or password, it redirects me to https://mobile.twitter.com/login/error?.… Thats OK too.

  3. But If I open this url in browser on Windows Phone device and input invalid email or password, it redirects me to https://api.twitter.com/login/error?.…, and then browser says "Sorry, that page doesn’t exist! ".

Why does Twitter redirect me to nonexistent url?