Link function considers an url as absolute if it starts with a scheme

(cherry picked from commit afe8848)

Author: cmurialdo

dotnet/Directory.Build.props

@@ -6,7 +6,7 @@
 		<MinorFileVersion>8</MinorFileVersion>
 		<RevisionFileVersion Condition="'$(CommitNumber)'!=''">$(CommitNumber)</RevisionFileVersion>
 		<RevisionFileVersion Condition="'$(CommitNumber)'==''">0</RevisionFileVersion>
-		<FileVersionWithoutRevision>$(MajorFileVersion).$(MinorFileVersion).2</FileVersionWithoutRevision>
+		<FileVersionWithoutRevision>$(MajorFileVersion).$(MinorFileVersion).3</FileVersionWithoutRevision>
 		<FileVersion>$(FileVersionWithoutRevision).$(RevisionFileVersion)</FileVersion>
 		<InformationalVersion>$([System.DateTime]::UtcNow.ToString("yyyyMMddHHmmss")).$(GITHUB_SHA)</InformationalVersion>
 		<Company>GeneXus</Company>

dotnet/src/dotnetframework/GxClasses/Model/URLRouter.cs

@@ -3,6 +3,7 @@
 using System.IO;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 using GeneXus.Configuration;
 using GeneXus.Http;
 using GeneXus.Utils;
@@ -14,11 +15,12 @@ internal class URLRouter
 
 		static ConcurrentDictionary<string, string> routerList;
 		const string RESOURCE_PATTERN = "*.rewrite";
-
+		const string schemeRegEx = @"^([a-z][a-z0-9+\-.]*):";
+		static Regex scheme = new Regex(schemeRegEx, RegexOptions.IgnoreCase);
 		internal static string GetURLRoute(string key, object[] objectParms, string[] parmsName, string scriptPath)
 		{
 			string[] parms = objectParms.Select(p => StringizeParm(p)).ToArray() ;
-			if (PathUtil.IsAbsoluteUrl(key) || key.StartsWith("/"))
+			if (PathUtil.IsAbsoluteUrl(key) || key.StartsWith("/") || scheme.IsMatch(key))
 				return key;
 
 			if (routerList == null)