phpengine/ui/masterpage.tpl

<!DOCTYPE html>
<html lang="it">
<head>
  <meta charset="UTF-8">
  <meta content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no" name="viewport">
  <title>{{@SITENAME}}</title>
  <link href="{{@BASEURL}}/bundle.css?v={{@VERSION}}" rel="stylesheet" type="text/css"/>
  <link href="{{@BASEURL}}/ui/favicon_{{@CUSTOMERNAME}}.ico?v={{@VERSION}}" rel="shortcut icon" type="image/x-icon">

  <script type="text/javascript">
    const BASEURL = '{{@BASEURL}}';
  </script>
</head>
<body>

<include href="header.tpl"/>

<div class="d-flex flex-row justify-content-around align-items-center" style="overflow-y: auto; height: calc(100% - 150px)">
  <include href="{{@CONTENT}}" if="{{isset(@CONTENT)}}"/>
</div>

<include href="footer.tpl"/>

<script src="{{@BASEURL}}/bundle.js?v={{@VERSION}}"></script>

<check if="{{isset(@REQ_REDIRECT}})">
  <true>
    <script>
      setTimeout(() => {
        window.location.href = "{{@BASEURL}}/{{@REQ_REDIRECT}}";
      }, {{@REQ_REDIRECT_MS}})

    </script>
  </true>
</check>

</body>
</html>