可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):

问题:

I have been trying to get VideoJS to play the demo video for 2 days with no luck in IE8. I can get it to play in Firefox, Chrome and Safari. All I get is a black box where the video should be. The page is simple. Can anyone shed som elight on this for me?

Thanks...

Source is:

<!doctype html>
<!--[if lt IE 7]><html class="no-js ie6 oldie" lang=en><![endif]-->
<!--[if IE 7]><html class="no-js ie7 oldie" lang=en><![endif]-->
<!--[if IE 8]><html class="no-js ie8 oldie" lang=en><![endif]-->

<!--[if gt IE 8]><!--> <html class=no-js lang=en> <!--<![endif]-->
<head>
  <meta charset=utf-8>
  <title>Test VideoJSPlayback</title>
  <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=utf-8" />

  <link rel=stylesheet href="http://vjs.zencdn.net/3.2/video-js.css" type="text/css">
  <script type="text/javascript" src="http://vjs.zencdn.net/3.2/video.js"></script>
  <script src="http://www1.videojs.com/js/libs/modernizr-2.0.6.min.js"></script>
</head>

<body>

  <div id=player_box>

    <video id=home_video class="video-js vjs-default-skin" controls preload=none width=640 height=264
        poster="http://video-js.zencoder.com/oceans-clip.jpg">
      <source src="http://video-js.zencoder.com/oceans-clip.mp4" type='video/mp4'/>
      <source src="http://video-js.zencoder.com/oceans-clip.webm" type='video/webm'/>
      <track kind=captions src="/video-js/captions.vtt" srclang=en label=English />
    </video>

    <script>var homePlayer=_V_("home_video");</script>

  </div>

</body>
</html>

回答1:

As you probably know IE 8 does not support HTML5 video playback, so what video-js does is utilize video-js.swf to encode the mp4 file and serve a "Flash version" without the need for additional files.

Add quotations to your video tag.

<video id="home_video" class="video-js vjs-default-skin" controls preload="none" width="640" height="264">
...
</video>

Also, In your video-js JavaScript file search for "video-js.swf" find where this file is being referenced, if you are using a local version be sure the path is correct, if not, be sure you are not recieving any JavaScript errors in IE due to cross domain file Interpretation or MIME errors.