UserAgent: Mozilla/5.0 (X11; CrOS x86_64 11151.59.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.94 Safari/537.36

Steps to reproduce the problem:
Chrome refuses to play HTML5 video with the mime video/3gpp but when the wrong mime is put in the video tag like video/mp4 even though the file is the same it works for some reason.

When using this with a 3gp video in chrome it works correctly

  <source src="{link here}" type="video/mp4">

Your browser does not support the video tag.
</video>
When using

  <source src="{link here}" type="video/3gpp">

Your browser does not support the video tag.
</video>
the video doesn't play.

What is the expected behavior?
That the video will play correctly with its original MIME type.

What went wrong?
Video doesn't play as expected

Did this work before? No 

Does this work in other browsers? Yes

Chrome version: 71.0.3578.94  Channel: stable
OS Version: 11151.59.0
Flash Version: 

The example files included are Creative Commons licensed so that I can post them here. The issues persist with both.

The songs are as follows:

maF 464 - Mafland Remix

Bay Breeze - 43
 

Deleted: videoplayback.3gp 1.1 MB

videoplayback.3gp 1.1 MB Download

Deleted: videoplayback3gp 6.6 MB

videoplayback3gp 6.6 MB View Download