HttpContext path is returning undefined in ASP.Net Core

We have an Web API (.Net Core) application installed in Test and PROD server, we are logging incoming request paths, using httpcontext Class.

But this class is giving path as /:undefined, sometimes as /struts2-showcase/struts/inputtransfersselect.js, /struts2-showcase/token/transfer4.action, /index.action/struts/utils.js etc.

Where as in local, I am getting Path as /swagger/index.html, when I run API in Swagger, which is expected.

Why this is happening, how to avoid these urls hitting our API and resolve this problem.

Thanks.