How to use old routing in angular6?

Question

JavaScript

I am using angular6 and its routing. Thus, if I copy a link and open it, for example, in chrome's anonymous mode, I get a message that the page was not found. I would like to avoid this.
Is it possible to make the main address always start with a hash mark? For example like this:

http://localhost:4200/#/index1
http://localhost:4200/#/index2
http://localhost:4200/#/index3

But when copying the address and pasting it into another window, some one page would open by default. For example:
http://localhost:4200/#/index1
Live demo here

Answer 1

1. Hash usage: 2. Redirect:

const appRoutes: Routes = [{
    path: '',
    redirectTo: '/index1',
    pathMatch: 'full'
  }
];