Отключить автозаполнение браузера
<form method="post" action="/form" autocomplete="off">
[…]
</form>
Matteoweb
<form method="post" action="/form" autocomplete="off">
[…]
</form>autocomplete="off"someForm.setAttribute( "autocomplete", "off" );
someFormElm.setAttribute( "autocomplete", "off" );