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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 - Content blocking not working (if update iOS)"
   href="https://bugs.webkit.org/show_bug.cgi?id=158874">158874</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Content blocking not working (if update iOS)
          </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>iOS
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>iOS 9.3
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>Critical
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>thingerarmtuki&#64;gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Loading this content blocker app
<a href="https://github.com/AdguardTeam/AdguardForiOS">https://github.com/AdguardTeam/AdguardForiOS</a>
<a href="https://itunes.apple.com/us/app/adguard-adblock-privacy-protection/id1047223162?mt=8">https://itunes.apple.com/us/app/adguard-adblock-privacy-protection/id1047223162?mt=8</a>

or from Mozilla Focus

I using ios 9.3.3 public beta 1, then loading public beta 2, ios device restart and install this update. 10 min later,done. now open safari and go to website with ad. you can see no blocking.

then I see in settings from safari, the app is on!! in this case disable and activate again. go to website again, now blocking!!

this is bug!! always if update new ios version!!

please fix</pre>
        </div>
      </p>
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