Facebook Callback appends '#_=_' to Return URL

Question

Facebook callback has started appending #_=_ hash underscore to the Return URL

Does anyone know why? What is the solution?

Answer 1

if you want to remove the remaining "#" from the url

$(window).on('load', function(e){
  if (window.location.hash == '#_=_') {
    window.location.hash = ''; // for older browsers, leaves a # behind
    history.pushState('', document.title, window.location.pathname); // nice and clean
    e.preventDefault(); // no page reload
  }
})