Ok keyboard button is not submitting my form?

I have a dynamicpopup that submits the form if I click on my button with an class=“skickalosenordetpopup”.
But if I click the “OK” button in the phones keyboard it is not submitting it? It is just closing the dynamicpopup?

This is my dynamicpopup code.

var dynamicPopup = app.popup.create({
  content: '<div class="popup popup-tablet-fullscreen">'+
              '<div class="page">'+
                  	'<div class="page-content login-screen-content">'+
					  '<div class="card" style="margin-top:-10px;box-shadow: 0 0px 0px rgba(0, 0, 0, .3);">'+
					  '<div class="card-content" style="border-top: solid 0px #e1e1e1;background:#fcfcfc;">'+
							'<div class="card-content-inner">'+
					  
						'<div class="login-screen-title" style="font-size: 22px;">DINA INLOGGNINGSUPPGIFTER!</div>'+
						'<div class="block" style="padding: 0px;">'+
						'Har du glömt eller inte fått dina inloggningsuppgifter så skicka efter dom här genom att fylla i din emailadress.'+
						'</div>'+
						'<form name="losenordpopup">'+
						  '<div class="list">'+
							'<ul>'+
							  '<li class="item-content item-input" style="padding-left: 0px;">'+
							   
								'<div class="item-inner">'+
								  '<!--<div class="item-title label">Din emailadress</div>-->'+
								  '<div class="item-input-wrap">'+
									'<input type="email" id="emailpopup" name="emailpopup" placeholder="Din emailadress" required validate/>'+
									'<span class="input-clear-button"></span>'+
								  '</div>'+
								'</div>'+
							  '</li>'+
							  
						
							  '<li>'+
							  '<br><br>'+
							 
							  '<input type="button" class="button skickalosenordetpopup text-color-blue"  value="SKICKA"/>'+
							  
							  '</li>'+
							  '<li>'+
							   '<br>'+
                                '<a href="#" class="list-button password-popupclose"" style="font-size: 14px;" >STÄNG</a>'+
                            '</li>'+
							'</ul>'+
						  '</div>'+
						'</form>'+
					  '</div>'+
					'</div>  '+ 
					'</div> '+
					'</div> '+ 
              '</div>'+
            '</div>',
  // Events
  on: {
    open: function (popup) {
      //console.log('Popup open');
    },
    opened: function (popup) {
     // console.log('Popup opened');
    },
  }
});

And this is my code that submit it.

$$(document).on('click', '.skickalosenordetpopup', function (e) { 
  var emailpopup = $$(document).find('input[name=emailpopup]').val();
 
  	var data;
	app.request({
	    method: 'POST',
	    url: 'https://somepage.com/installningar/check_email.asp',
	    data: {
		  email : $$(document).find('input[name=emailpopup]').val(),
		   },
		  
	   success: function (data) {
		   //console.log(data+'emailen fanns - vanlig anv')
				
					   var data;
						app.request({
					    method: 'POST',
					    url: 'https://somepage.com/installningar/skickalosenord2.asp',
					    data: {
					      email : $$(document).find('input[name=emailpopup]').val(),
						   },
					   success: function (data) { 
						  app.dialog.alert(data,"SKOLAPPEN")
						 $$(document).find('input[name=emailpopup]').val('')
						 dynamicPopup.close();
						 
					    }
					});
					return false;
			});						
});

So how do I submit it correctly when I click the “OK” keyboard button?
Any input appreciated, thanks.

You need to list for submit event on form and not the click on custom button