我正在使用带有HTML5 video标签的网站。该视频无法在网站上播放。但是，如果我在其他地方对其进行测试，则可以正常播放。
http://carflow-staging.houston-1.hybridmedia.be/
我的代码在这里：
<video class="video-splash__video" width="720" height="405" autoplay="" poster="http://carflow-staging.houston-1.hybridmedia.be/wp-content/themes/framework_wp/img/videoCarflowBackground.png">
<source src="http://carflow-staging.houston-1.hybridmedia.be/wp-content/themes/framework_wp/video/videoCarflowBackground.mp4" type="video/mp4">
<source src="http://carflow-staging.houston-1.hybridmedia.be/wp-content/themes/framework_wp/video/videoCarflowBackground.ogg" type="video/ogg">
<source src="http://carflow-staging.houston-1.hybridmedia.be/wp-content/themes/framework_wp/video/videoCarflowBackground.webm" type="video/webm">
Your browser does not support the video tag or the file format of this video.
</video>
可能是什么问题？