sandbox-mandatory-flags-looser-restriction.sub.html

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<!DOCTYPE html>

<title>Iframe content to load a nested sandboxed iframe with all mandatory allow-* flags</title>

<body>

<iframe

  src="sandbox-mandatory-flags-iframe.sub.html?key={{GET[key]}}&value={{GET[value]}}"

  sandbox="allow-same-origin

           allow-forms

           allow-scripts

           allow-popups

           allow-popups-to-escape-sandbox

           allow-top-navigation-by-user-activation">

</iframe>

</body>