IUrlHelper behave strange for new version of .net core 2.2

[Eilon]

From @benzhi2011 on Wednesday, 05 December 2018 15:00:37

IUrlHelper behave strange for new version of .net core 2.2

Helper method that is working for all early version

    public static string AbsoluteRouteUrl(
    this IUrlHelper url,
    string routeName,
    object routeValues = null)
    {
        return url.RouteUrl(routeName, routeValues, url.ActionContext.HttpContext.Request.Scheme);
     }

    string serviceUrl = Url.AbsoluteRouteUrl("default");

about one line of code return the Url of the executing MVC controller, in my case here it should return DNS + /Login/SSO and this code has been working for .core 1.1 and 2.1

After I updated to 2.2 this serviceUrl return DNS + /Contact/SSO when I call it from Login controller method SSO. This is really weird.

Copied from original issue: dotnet/core#2107

[Eilon]

From @benzhi2011 on Thursday, 06 December 2018 08:29:24

I forgot to mention that my Project is asp.net core 2.2 >.NET Framework
I can reproduce this error by creating new project with version 2.2
Create a new controller and ContactController
Create UrlHelperExtensions class with method AbsoluteRouteUrl.
Then use code
string serviceUrl = Url.AbsoluteRouteUrl("default");
in WhateverController class and break it to see the serviceUrl

[mkArtakMSFT]

Thanks for contacting us, @benzhi2011.
@JamesNK, can you please provide info regarding what has changed in this area and whether the changes were intentional or not? Thanks!

[Muchiachio]

May be related to #4418.

[benzhi2011]

any updates on this?

[JamesNK]

Hi @benzhi2011

You should be able to fix this issue by disabling endpoint routing in Startup.cs where AddMvc is called:

services.AddMvc(options.EnableEndpointRouting = false)

We'll try to provide information about a more long-term solution soon.

[benzhi2011]

thx

[JamesNK]

I've confirmed that your issue is fixed with endpoint routing in ASP.NET Core 3.0.

Because the fix is large it is unlikely to be patched in 2.2. Until 3.0 is out you can get your application working by turning off endpoint routing:

services.AddMvc(options.EnableEndpointRouting = false)

Thanks for reporting this issue. If you have anymore questions you can continue to ask them here.