URLs are not longer supported as PathMap values in roslyn 2.8.0

Author: m0sa

Test.ConsoleApp/Program.cs

@@ -16,8 +16,8 @@ static void Main(string[] args)
 
         // path mapping test, configured via <PathMap> property in the .csproj
         static string PathMapTest([CallerFilePath] string path = null) =>
-            path.StartsWith("https://example.org/")
+            path.StartsWith("X:\\Test\\")
                 ? path
-                : throw new InvalidOperationException($"CallerFilePath was expected to start with https://example.org/ but was {path}.");
+                : throw new InvalidOperationException($"CallerFilePath was expected to start with X:\\Test\\ but was {path}.");
     }
 }

Test.ConsoleApp/Test.ConsoleApp.csproj

@@ -6,7 +6,7 @@
     <TargetFrameworks>net462;netcoreapp20</TargetFrameworks>
     <RuntimeIdentifiers>win10-x64</RuntimeIdentifiers>
     <SEPrecompilerPath Condition="'$(SEPrecompilerPath)' == ''">$(SolutionDir)StackExchange.Precompilation.Build\bin\$(Configuration)\net462\</SEPrecompilerPath>
-    <PathMap>$(SolutionDir)=https://example.org/</PathMap>
+    <PathMap>$(SolutionDir)=X:\Test\</PathMap>
     <DebugType>portable</DebugType>
   </PropertyGroup>
   <ItemGroup>