appLinksPostNavigationPhone.html

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<!doctype html>

<meta charset="utf-8" />

<meta name="viewport" content="width=device-width, initial-scale=1" />

This is the page with the auto-submitting form that redirects to an phone

intent.

<form action="tel://1234567890" method="POST"></form>

<script>

  const f = document.forms[0];

  f.submit();

</script>