I have a table that has a <thead>, a <tfoot> and a <tbody>. It is supposed to print the thead and tfoot on each page in theory, but for some reason the thead does not if it contains certain elements together.

This works:

<thead>
    <tr>
        <td colspan="3">This works</td>
    <tr>
    <tr>
        <th colspan="2">column 1</th>
    <th>
        column 2
        </th>
</tr>
</thead>

This does not seem to work:

<thead>
    <tr>
        <td colspan="3">
            <h2>Header</h2>
                <address>
                    <strong>address 1</strong> <br />
                    address 2 <br />
                    address 3 <br />
                </address>
             <img src="/images/logo.png" alt="Logo" />
             <h2>Another header</h2>
             <hr />
        </td>
    </tr>
    <tr>
        <th colspan="2">column 1</th>
    <th>
        column 2
        </th>
</tr>
</thead>

Is there a reason for this not to work?