Close pop up on back button

Question

I want to close pop up on click of back button for mobile. I implemented this using onhashchange:

window.onhashchange = function (event) {

};

Answer 1

My Solution in Angular

// push history state when a dialog is opened
dialogRef.afterOpened.subscribe((ref: MatDialogRef) => {
  window.history.pushState(ref.id, '');
  // pop from history if dialog has not been closed with back button, and gurrent state is still ref.id
  ref.afterClosed().subscribe(() => {
    if (history.state === ref.id) {
      window.history.go(-1);
    }
  });
});