使用Windows 8而非Windows 7时，Google Api Redirect在WP7上给我404错误

Question

I been scratching my head trying to figure out why a project I have(what I did not touch) was not working anymore.

Basically I was trying trying to get some data back from google contacts. When I selected "allow" in the oAuth part it would keep giving me a 404 error. This is all done in the windows phone 7 emulator.

I then realized that I was on my Windows 8 partition so I went back to my windows 7 partition and it works.

Wondering if it is some IE 10 issue or something. Anyone have any theories of why this is happening?

Edit

Here is some quick sample code I whipped up maybe someone can try it and tell me what is going on.

 string clientId = "You client id here";

        public MainPage()
        {
            InitializeComponent();

            string url = String.Format("https://accounts.google.com/o/oauth2/auth?scope=https://www.google.com/m8/feeds&redirect_uri=http://localhost&response_type=code&approval_prompt=auto&client_id={0}", clientId);
            webBrowser1.Navigated += new EventHandler<System.Windows.Navigation.NavigationEventArgs>(webBrowser1_Navigated);



            webBrowser1.Navigate(new Uri(url, UriKind.Absolute));




        }



        void webBrowser1_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)
        {
           var queryParmas = e.Uri.ParseQueryString();

           foreach (var item in queryParmas)
           {
               if (item.Key == "code")
               {
                   string test1 = "If you got here then it works";
                   string test2 = "in windows 8";

               }
           }
        }


    }

xaml

 <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <phone:WebBrowser HorizontalAlignment="Left" IsScriptEnabled="True" Name="webBrowser1" VerticalAlignment="Top" Height="669" Width="468" />
        </Grid>

Edit2

They released IE 10 for Windows 7 so I installed that and it still works on Windows 7 so I guess it is not an IE issue. Must be something with Windows 8? Maybe iis?

Edit3

Here is a flow of what is happening in Windows 7

1. Application start up and loads MainPg.xmal
2. Navigated is triggered but if statement is skipped
3. User Sees Google Login Page and enters in information and hits login
4. Navigated is triggered but if statement is skipped
5. User sees "request page" and must allow application permissions
6. User hit allow
7. Navigated is triggered and goes into "if" statement
8. User sees IIS 7 screen.

Here is a flow of what is happening in Windows 8

1. Application start up and loads MainPg.xmal
2. Navigated is triggered but if statement is skipped
3. User Sees Google Login Page and enters in information and hits login
4. Navigated is triggered but if statement is skipped
5. User sees "request page" and must allow application permissions
6. User hit allow
7. Goes to 404 pages Navigated is not triggered.

As you can see it goes all wrong after the allow button is pressed. In windows 7 it goes back to the Navigated method and then shows IIS 7 welcome page but in Windows 8 after the allow button is hit it does not go to the navigated page and shows 404 instead.

Answer 1

You should be using the "Navigating" event handler, not the "Navigated" event handler. This will allow you to cancel the navigation when you get the code value. The navigated handler is called after the navigation and since the callback url does not really exist, it throws the 404 error. It seems like it is operating correctly on your Windows 8, not sure why you are not getting the 404 on Windows 7 because you should see it there too.