Forms/template/js/form_view.js

var builder;  
    
function openlink(menuitem){
  var menu = { name: menuitem };

  $.ajax({
    type: "PUT",
    url: window.name,
    contentType: "application/json",
    data: JSON.stringify(menu),
    success: function (data) {
      
    }
  });
}

//https://stackoverflow.com/questions/5717093/check-if-a-javascript-string-is-a-url
function validURL(str) {
  var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
    '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // domain name
    '((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
    '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
    '(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string
    '(\\#[-a-z\\d_]*)?$','i'); // fragment locator
  return !!pattern.test(str);
}

function convertLinks(){
  $("#form a").each(function() {
    if(!validURL($(this).attr('href'))){
      $(this).attr('href', "javascript:openlink('" + $(this).attr('href') + "');")
    }
  })
  
}

$(document).ready(function(){
  
  
  var formElement = document.getElementById('form');
  var subJSON = document.getElementById('submission');

  var onForm = function(form) {
    subJSON.appendChild(document.createTextNode(JSON.stringify(form.submission, null, 4)));
    convertLinks();
    
    form.on('change', function() {
      subJSON.innerHTML = '';
      subJSON.appendChild(document.createTextNode(JSON.stringify(form.submission, null, 4)));
    });
  };
  
  $.ajax({
    type: "GET",
    url: (window.location.href + "/json").replace(/([^:]\/)\/+/g, "$1"),
    dataType: "json",
    success: function(json) {
      var builder = new Formio.FormBuilder(document.getElementById("builder"), json);
      Formio.createForm(formElement, builder.instance.form).then(onForm);
    
    },
    error: function (request, status, error) {
      alert(request.responseText + status + error);
    }
  });

});