BlazorWebView: ignore query‑string dots in IsBaseOfPage

Author: tw4

src/BlazorWebView/src/Maui/Extensions/UriExtensions.cs

@@ -5,16 +5,21 @@ namespace Microsoft.AspNetCore.Components.WebView.Maui
 {
 	internal static class UriExtensions
 	{
-		internal static bool IsBaseOfPage(this Uri baseUri, string? uriString)
-		{
-			if (Path.HasExtension(uriString))
-			{
-				// If the path ends in a file extension, it's not referring to a page.
-				return false;
-			}
-
-			var uri = new Uri(uriString!);
-			return baseUri.IsBaseOf(uri);
-		}
+	    internal static bool IsBaseOfPage(this Uri baseUri, string? uriString)
+	    {
+	        if (string.IsNullOrWhiteSpace(uriString))
+	            return false;
+	
+	        if (!Uri.TryCreate(uriString, UriKind.Absolute, out var uri))
+	            return false;
+	
+	        if (uri.Scheme is not ("http" or "https"))
+	            return false;
+	
+	        if (Path.HasExtension(uri.AbsolutePath))
+	            return false;
+	
+	        return baseUri.IsBaseOf(uri);
+	    }
 	}
 }