'null' background image

[znarf]

When browsing https://opencollective.com/yeoman

A null background image is loaded resulting in a bogus request to https://opencollective.com/null. That is in the end a performance issue because a full web page is loaded in place of a static image.

<div class="jsx-3812884289 jsx-3812884289 Member undefined large USER viewMode-USER">
  <div class="jsx-3812884289 jsx-3812884289">
    <a title="Frank Paczynski" href="/frankpaczynski">
      <div style="width:45px;height:45px;background-image:url(/static/images/avatar-01.svg)" class="jsx-179226476 jsx-179226476 Avatar undefined">
        <div style="background-image:url(null);width:45px;height:45px" class="jsx-179226476 jsx-179226476 image"></div>
      </div>
      <div class="jsx-3812884289 jsx-3812884289 bubble">
        <div class="jsx-3812884289 jsx-3812884289 name">Frank Paczynski</div>
        <div style="color:#797D7F" class="jsx-3812884289 jsx-3812884289 description"></div>
        <div style="color:#797D7F" class="jsx-3812884289 jsx-3812884289 meta since">Backer since October 2017</div>
        <div style="color:#797D7F" class="jsx-3812884289 jsx-3812884289 meta totalDonations">Total amount contributed: $3</div>
      </div>
    </a>
  </div>
</div>

In this snippet, there is also:

• some `undefined' classes that could be removed.
• a duplicate jsx class that could also be investigated.

[znarf]

The duplicate class issue is mentioned here: vercel/styled-jsx#407