Fix server doesn't initialize

Author: jwortmann

src/requests/init.jl

@@ -251,8 +251,10 @@ function initialized_notification(params::InitializedParams, server::LanguageSer
                 file_full_path = joinpath(server.env_path, file)
                 uri = filepath2uri(file_full_path)
                 if isfile(file_full_path)
+                    # TODO properly normalize drive letters in paths
+                    file_full_path_lowerfirst = lowercasefirst(file_full_path)
                     # Only add again if outside of the workspace folders
-                    if all(i->!startswith(file_full_path, i), server.workspaceFolders)
+                    if all(i->!startswith(file_full_path_lowerfirst, i), server.workspaceFolders)
                         if haskey(server._files_from_disc, uri)
                             error("This should not happen")
                         end