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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 - UIWebView crashed at UIViewAnimationState popAnimationState"
   href="https://bugs.webkit.org/show_bug.cgi?id=146489">146489</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>UIWebView crashed at UIViewAnimationState popAnimationState
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>iOS
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>iOS 8.0
          </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>New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>wenpkpk&#64;gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>In iOS8, UIWebView has some bugs when it load a page contains video or audio, it crashed some times. 

crash stack:
Version:         9.0.0
Code Type:       ARM-64
Parent Process:  launchd [1]

Date/Time:       2015-06-29 16:46:30 +0000
OS Version:      iPhone OS 8.3 (12F70)
Report Version:  104

Exception Type:  SIGSEGV
Exception Codes: SEGV_MAPERR at 0xd7d0beb8
Crashed Thread:  0

Thread 0 Crashed:
0   libobjc.A.dylib                     0x0000000194bebbd0 objc_msgSend + 16
1   UIKit                               0x0000000187e2a39c +[UIViewAnimationState popAnimationState] + 64
2   MediaPlayer                         0x00000001856b96e8 -[MPVolumeSlider _layoutForAvailableRoutes] + 1248
3   MediaPlayer                         0x00000001856c3a58 __59-[MPAVRoutingController _scheduleSendDelegateRoutesChanged]_block_invoke + 148
4   libdispatch.dylib                   0x0000000195229994 _dispatch_call_block_and_release + 24
5   libdispatch.dylib                   0x0000000195229954 _dispatch_client_callout + 16
6   libdispatch.dylib                   0x000000019522e20c _dispatch_main_queue_callback_4CF + 1608
7   CoreFoundation                      0x000000018336b7f8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
8   CoreFoundation                      0x00000001833698a0 __CFRunLoopRun + 1492
9   CoreFoundation                      0x00000001832952d4 CFRunLoopRunSpecific + 396
10  GraphicsServices                    0x000000018caab6fc GSEventRunModal + 168
11  UIKit                               0x0000000187e5afac UIApplicationMain + 1488
12  MyApp                               0x00000001000bf044 main (main.m:62)
13  libdyld.dylib                       0x0000000195256a08 start + 4</pre>
        </div>
      </p>
      <hr>
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      <ul>
          <li>You are the assignee for the bug.</li>
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