Why does Internet Explorer say "Error: Video playback was aborted" for HTML5 video?

I set up a very simple HTML5 video element on a page:

<video id="test" style="width: 100%; height: 600px;" class="center-block" controls preload="auto">
  <source src="training-video.mp4" type="video/mp4">

But when I navigate to the page with Internet Explorer, the space for the video says "Error: Video playback was aborted."

And when I go to the network tab in F12, Internet Explorer hasn't even bothered to ask the server for the video. What's going on?


It turns out that video playback for the Internet zone was disabled in group policy by the domain gods. Accessing the same page with a simple hostname got the video to load in the Intranet zone and bypass the block.

Need Your Help

Play 2x webjars deploy to heroku failed

heroku playframework-2.0 webjars

I tried deploying the standard angular-play-seed project, which uses angularjs and requirejs webjars to heroku.