How to capture all request with 'http' & 'https' scheme name?

[Christian LeMoussel]

To capture/modify requests/responses, It' necessary to register custom scheme handler.
I've implemented my SchemeHandler and SchemeHandlerFactory and registered that scheme in settings:

The problem is that only requests with 'hhtp' scheme are capturing. How to capture all request with 'http' & 'https' scheme name?

    internal class CefSharpSchemeHandlerFactory : ISchemeHandlerFactory
    {
       public const string SchemeName = "http";

       public ISchemeHandler Create()
       {
          return new CefSharpSchemeHandler();
       }
    }

    internal class CefSharpSchemeHandler : ISchemeHandler
    {
        public bool ProcessRequestAsync(IRequest request, ISchemeHandlerResponse response, OnRequestCompletedHandler requestCompletedCallback)
        {
            // TODO some stuff ......
          

            // Return false to execute the default behaviour
            return false;
        }
    }

    private static void BrowserFrameLoadEnd(object sender, FrameLoadEndEventArgs e)
    {
        if (e.IsMainFrame)
        {
            browser.FrameLoadEnd -= BrowserFrameLoadEnd;
        }
    }


    static void Main(string[] args)
    {
        const string testUrl1 = "http://httpbin.org/";    
        const string testUrl2 = "https://httpbin.org/";

        CefSettings set = new CefSettings();
        set.RegisterScheme(new CefCustomScheme()
        {
            SchemeName = CefSharpSchemeHandlerFactory.schemeName,
            SchemeHandlerFactory = new CefSharpSchemeHandlerFactory()
        });
        Cef.Initialize(set);

        browser = new ChromiumWebBrowser();
        browser.FrameLoadEnd += BrowserFrameLoadEnd;
        browser.Load(testUrl1);

        Console.ReadKey();

        Cef.Shutdown();
    }

[Alex Maitland]

You've only registered for `http`, you need to register twice, once for `http` and the second time for `https`. They are two different schemes.

Also `return false` for a `Scheme` handler will cancel the request. There is no default behavior, you are responsible for handling the entire request.

To intercept, you need to look at `IResourceHandlerFactory` e.g. https://github.com/cefsharp/CefSharp/blob/master/CefSharp/DefaultResourceHandlerFactory.cs

[Alex Maitland]

Downside of `ResourceHandler` approach, is that it's only `sync`, at some point there will be an `async` implementation.

You can register a `Scheme` for a specific domain if you only wish to respond to specific requests.