net::ERR_INVALID_HTTP_RESPONSE error after post request with Angular 7

Question

I am working on small web application and I am using angular 7 and asp.net core web api as a back end. I am trying to make http post request with angular. My service returns str

Answer 1

I figured out where the problem is located. It's on the server side. Did you use ASP.NET Core 2.2 ? After downgrading to 2.1, it's finally working !

  
    netcoreapp2.1
    InProcess
  

  
    
    
    
    
    
  

  
    
  

But I can't understand why. The only thing that changed is in one header, the Server header. It changed from Microsoft-IIS/10.0 (2.2) to Kestrel (2.1)