Chrome scroll bug

scroll_bug_test.html

<style>
.fixed {
  position: fixed;
  min-width: 600px;
  top: 20px;
  bottom: 20px;
  right: 20px;
  overflow-y: auto;
  border: 1px solid gray;
  padding: 20px;
}
.fixed:hover {
  box-shadow: 0 0 10px 10px rgba(0,0,0,0.5);
}
.filler {
  height: 400px;
}
</style>

<div>
  <div class="filler"></div>
  <div class="filler"></div>
  <div class="filler"></div>
  <div class="filler"></div>
  <div class="filler"></div>
  <div class="filler"></div>
  <a href="#h1">h1</a>
  <a href="#h2">h2</a>
  <a href="#h3">h3</a>
  <a href="#h4">h4</a>
</div>

<div class="fixed">
<h1 id="h1">Heading 1</h1>
<div class="filler"></div>
<h1 id="h2">Heading 2</h1>
<div class="filler"></div>
<h1 id="h3">Heading 3</h1>
<div class="filler"></div>
<h1 id="h4">Heading 4</h1>
<div class="filler"></div>
<h1 id="h5">Heading 5</h1>
<div class="filler"></div>
<h1 id="h6">Heading 6</h1>
<div class="filler"></div>
<h1 id="h7">Heading 7</h1>
<div class="filler"></div>
</div>