How to fix: HTML5 video not working in IE9

Updated 2018-03-15. Posted 2016-04-08. Visible to the public. Deprecated.

Microsoft does not support IE9 anymore, and neither do we.

While IE9 does support HTML5 <video> tags, it fails to work until you force HTML5 mode.

Here are two ways to do that.

Option 1: Doctype

Make sure your HTML document uses HTML5. It should start like this:

<!DOCTYPE html>

Option 2: Magic meta tag

If you can not set a doctype, you use the X-UA-Compatible meta tag in your HTML <head>.

<meta http-equiv="X-UA-Compatible" content="IE=Edge"/>

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

Prevents you from data breaches and liability risks
Upgrade at your own pace
Works with modern Rubies

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Posted by Arne Hartherz to makandra dev (2016-04-08 11:50)