UserAgent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2832.2 Safari/537.36

Example URL:

Steps to reproduce the problem:
1. just open the link

What is the expected behavior?
video playback correctly

What went wrong?
no video buffering and playback

Did this work before? N/A 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? Yes 

Chrome version: 54.0.2832.2  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 23.0 r0

Uncaught DOMException: Failed to execute 'addSourceBuffer' on 'MediaSource': The type provided ('video/mp4;codecs="avc1.4d001e"') is unsupported.
    at MediaSource.n.addSourceBuffer (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:12411)
    at constructor.data_ (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:1950)
    at Worker.transmuxer_.onmessage (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:170)
videojs-open-source-package.82.fb538fa….js:24 Uncaught DOMException: Failed to execute 'addSourceBuffer' on 'MediaSource': The type provided ('audio/mp4;codecs="mp4a.40.2"') is unsupported.
    at MediaSource.n.addSourceBuffer (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:12411)
    at constructor.data_ (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:2313)
    at Worker.transmuxer_.onmessage (https://www.udemy.com/staticx/udemy/js/webpack/videojs-open-source-package.82.fb538fa0ac8d95bbf376.js:24:170)