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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Amazon Prime Music: High CPU consumption"
   href="https://bugs.webkit.org/show_bug.cgi?id=162264">162264</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Amazon Prime Music: High CPU consumption
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>WebCore Misc.
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mail&#64;lovelyhippo.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Using Nuvola 3.0.4 with as Amazon Cloud Player (5.1) on Fedora 24.
Issue also occurs using Gnome browser epiphany.

CPU consumes around 80% when windows in brought to front.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
25024 cfi 20 0 3510156 346200 44684 R 82.8 4.4 25:05.61 WebKitWebProces
25067 cfi 20 0 2324700 35440 12420 S 13.6 0.5 14:04.48 WebKitPluginPro
25008 cfi 20 0 3019132 29968 22172 S 5.0 0.4 3:37.58 nuvolaplayer3-a

Network Library: libsoup 2.54.1
Web Engine: WebKitGTK 2.12.4

Window minimized is using between 8-10% CPU.

uname -a
Linux cfi-tp 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Intel(R) Core(TM) i5-4300U CPU &#64; 1.90GHz

I am using Cinnamon as DE:
cinnamon.x86_64 3.0.7-1.fc24
theme &quot;Android Holo&quot;.

Its iGPU Intel HD Graphics 4400.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
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