Merge pull request #22136 from unoplatform/dev/doti/webview-absolute-url

Author: agneszitte

src/Uno.UI/UI/Xaml/Controls/WebView/Core/CoreWebView2.cs

@@ -63,7 +63,7 @@ public void Navigate(string uri)
 		_processedSource = actualUri;
 		if (_owner.SwitchSourceBeforeNavigating)
 		{
-			Source = actualUri.ToString();
+			Source = actualUri.AbsoluteUri;
 		}
 
 		UpdateFromInternalSource();
@@ -124,7 +124,8 @@ internal void NavigateWithHttpRequestMessage(global::Windows.Web.Http.HttpReques
 		_processedSource = requestMessage;
 		if (_owner.SwitchSourceBeforeNavigating)
 		{
-			Source = requestMessage.RequestUri.ToString();
+			var reqUri = requestMessage.RequestUri;
+			Source = reqUri.IsAbsoluteUri ? reqUri.AbsoluteUri : reqUri.OriginalString;
 		}
 
 		UpdateFromInternalSource();

src/Uno.UI/UI/Xaml/Controls/WebView/WebView2/WebView2.Properties.cs

@@ -56,7 +56,12 @@ public Uri Source
 				var webView = (WebView2)s;
 				if (!webView._sourceChangeFromCore)
 				{
-					webView.CoreWebView2.Navigate(((Uri)e.NewValue)?.ToString());
+					var newUri = (Uri)e.NewValue;
+					if (newUri != null)
+					{
+						var targetUrl = newUri.IsAbsoluteUri ? newUri.AbsoluteUri : newUri.OriginalString;
+						webView.CoreWebView2.Navigate(targetUrl);
+					}
 				}
 			}));