action-send-mail/node_modules/showdown/test/features/tables/#442.trailing-spaces-break-one-column-tables.html

<table>
    <thead>
    <tr>
        <th style="text-align:left;">Single column</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td style="text-align:left;">Row one</td>
    </tr>
    <tr>
        <td style="text-align:left;">Row two</td>
    </tr>
    </tbody>
</table>