how do i extend ModalDirective to make modal close on backbutton and non route change?

[AswinKumar12]

Please help me to do modal close on browser's back button and also not route to be changed(Which is like the "Esc closing option")

[ludmilanesvitiy]

@AswinKumar12 There's no need to open an issue here if you want to ask a general question, use StackOverflow or Slack instead
https://stackoverflow.com/questions/tagged/ngx-bootstrap
https://ngx-home.slack.com/