QWebView fails to load OAuth pages on Symbian S60 5th

1.

Set QWebView to load facebook OAuth page.

Example link:

http://www.facebook.com/dialog/oauth/?scope=email,user_birthday&client_id=123050457758183&redirect_uri=http://www.example.com/response&response_type=token&display=touch

Observe, that it's impossible to click on login button.

2.

Same problems on OAuth page with Vkontakte.ru social network (page doesn't fully load and thus it's impossible to log in).