c# - ASP.Net Core MVC RedirectToAction is appending controller name in front of returnUrl -

i working on asp.net core, mvc 6 application. have appcontroler initial controller , if user tries go action has [authorize] attribute, redirect authcontroller login, passing in returnurl return. once authenticated, use ... return redirecttoaction(returnurl).

in debug, can see returnurl string set /app/timesheets. however, in browser address bar, has address of http://localhost:49940/auth/%2fapp%2ftimesheets. reason appending controller name (auth) in front of returnurl.

here login action in authcontroller

    [httppost]     public async task<actionresult> login(loginviewmodel vm, string returnurl)     {         if (modelstate.isvalid)         {             var signinresult = await _signinmanager.passwordsigninasync(vm.username, vm.password, true, false);              if (signinresult.succeeded)             {                 if (string.isnullorwhitespace(returnurl))                 {                     return redirecttoaction("timesheets", "app");                 }                 else                 {                     return redirecttoaction(returnurl);                 }             }             else             {                 modelstate.addmodelerror("", "username or password incorrect");             }         }          return view();     } 

i can manually enter http://localhost:49940/app/timesheets in browser address bar , correct view. also, if add

returnurl = string.empty; //test only

before line...

if (string.isnullorwhitespace(returnurl))

to cause execute line...

return redirecttoaction("timesheets", "app");

the redirection works fine. has passing in string variable in "/controller/action" format problem.

any ideas?

when have full url already, should return redirect. doing redirecttoaction try redirect action under current controller (auth).

if (signinresult.succeeded) {    if (string.isnullorwhitespace(returnurl))    {       return redirecttoaction("timesheets", "app");    }    else    {       return redirect(returnurl);    } }