Try (BAD ANSWER, SOLUTION BELOW)
window.location.reload(true);
SOLUTION :
Bad answer after research, sorry. The only solution consists to create an hidden form with method post and simulate a submit on this form ;)
<form action="?" method="POST" style="display:none" id="myform">
<input type="text" name="mydata" value="myvalue" />
</form>
<script>
;$(function() {
$('#myform').trigger('submit');
});
</script>