RobGMiller
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Added the following HTML5 Video tag to an aspx page. The tag is not recognized on this page in IE11 but it works as expected with chrome.
<video width="400" height="300" controls="controls"><source src="/InstructionVideo.mp4" type='video/mp4;codecs="avc1.4D401E, mp4a.40.2"' />Your browser does not support the video tag.</video>The W3Schools Video (Try it yourself) page works as expected in IE11.If this markup is added to a simple html file it works as expected in IE11.This application page contains a lot of other markup and javascript, including a fair amount of dynamic page element manipulation in the Page_Load.In addition, if the simple html file is launched from the aspx file using <a href="/InstructionVideo.html"> it doesn't work.If the simple html file is launched in a different window from the aspx file using <a onClick="window.open('InstructionVideo.html')"> it doesn't work.So, the question is; What kind of code can be present on an aspx page that might prevent the HTML5 Video tag from rendering properly?
Video tag in IE11
in HTML/XHTML
Posted
Thanks for the reply but that made no difference.
It should work without the codecs specification according to the w3schools test page which does work.
If I use the <source tag without the end tag />, the Visual Studio error detector tells me "Validation (XHTML5): Empty elements such as 'source' must end with />"
Could this be an issue?