Incorrect link in Swagger - asp.net-core

Question

I am using the ASP.NET Core 2.0 with Swashbuckle.AspNetCore (2.4.0)
in Startup ConfigureServices
services.AddSwaggerGen(c =>
{
c.OperationFilter<AuthorizationHeaderParameterOperationFilter>();
c.SwaggerDoc("v1", new Info
{
Version = "v1",
Title = "Library API",
Description = "ASP.NET Core Web API",
TermsOfService = "None",
Contact = new Contact
{
Name = "my name",
Email = "myname#mywebsite"
}
});
});
});
in Startup configure
app.UseSwagger(c =>
{
c.RouteTemplate =
"api-docs/{documentName}/swagger.json";
});
app.UseSwaggerUI(c =>
{
c.RoutePrefix = "api-docs";
c.SwaggerEndpoint("v1/swagger.json", "Api v1");
});
public class AuthorizationHeaderParameterOperationFilter : IOperationFilter
{
public void Apply(Operation operation, OperationFilterContext context)
{
var filterPipeline = context.ApiDescription.ActionDescriptor.FilterDescriptors;
var isAuthorized = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is AuthorizeFilter);
var allowAnonymous = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is IAllowAnonymousFilter);
if (isAuthorized && !allowAnonymous)
{
if (operation.Parameters == null)
operation.Parameters = new List<IParameter>();
operation.Parameters.Add(new NonBodyParameter
{
Name = "Authorization",
In = "header",
Description = "access token",
Required = true,
Type = "string"
});
}
}
}
which looks like this
however the links go to the url
about:blank
How do I set the v1/swagger.json link and the Terms of service link to go to the right place?

Answer 1

Use c.SwaggerEndpoint("./v1/swagger.json", "Api v1");
It's looks like a bug that relative path (without '/') renders empty link but swagger.json is available and all works.
I use relative path to work properly with reverse proxies but this is other story...