<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>{{ filename }}</title>
<style>
html, body {
    margin:0;
    padding:0;
    width:100%;
    height:100%;
    overflow:hidden;
}
iframe {
    width:100%;
    height:100%;
    margin:0;
    border:none;
}
</style>
</head>
<body>

<form id="office_form" name="office_form" target="office_frame" action="{{action_url}}" method="post">
    <input name="access_token" value="{{access_token}}" type="hidden"/>
    <input name="access_token_ttl" value="{{access_token_ttl}}" type="hidden"/>
</form>

<iframe id="office_frame" name="office_frame"></iframe>

<script type="text/javascript">
    document.getElementById('office_form').submit();
</script>

</body>
</html>
