history.pushState does not trigger 'popstate' event

Question

Why

$(function () {
  $(window).bind(\'popstate\', function () {alert(\'pop\');});

  window.history.pushState(null, \'\', \'/foo\');
});

Answer 1

You are reading MDN's "guide page" which is not meant to be normative.

Consider reading MDN's "documentation page" for WindowEventHandlers.onpopstate instead:

Note that just calling history.pushState() or history.replaceState() won't trigger a popstate event. The popstate event is only triggered by doing a browser action such as a clicking on the back button (or calling history.back() in JavaScript). And the event is only triggered when the user navigates between two history entries for the same document.

Another undocumented way of triggering popstate is by direct manipulation of the window.location object.

// this also triggers popstate 
window.location.hash = "#some-new-hash"