config your app route to use hash # 
const routes: Routes = [
  // routes here
];
@NgModule({
  imports: [
    ... other imports
    RouterModule.forRoot(routes, { useHash: true })  // .../#/users/
  ],
  ...
})
export class SomeModule { }
or configure S3
In the Edit Redirection Rules section of the S3 Console for your domain, add the following rules:
<RoutingRules>
  <RoutingRule>
    <Condition>
      <HttpErrorCodeReturnedEquals>404</HttpErrorCodeReturnedEquals>
    </Condition>
    <Redirect>
      <HostName>domain.com</HostName>
      <ReplaceKeyPrefixWith>#/</ReplaceKeyPrefixWith>
    </Redirect>
  </RoutingRule>
</RoutingRules>
put this in index.html
<script language="javascript"> 
if (typeof(window.history.pushState) == 'function') { 
  window.history.pushState(null, "Site Name", window.location.hash.substring(2)); 
} else { 
  window.location.hash = window.location.hash.substring(2); 
} 
</script>