YouTube Embed feature for looping single videos isn't working

Question

Loop feature is not working.Example

Answer 1

Only a playlist can loop.
As such, there is a workaround by creating a playlist of the video.

https://www.youtube.com/embed/X03jlFijeQ0?playlist=X03jlFijeQ0&autoplay=1&controls=0& modestbranding=1&rel=0&showinfo=0&loop=1

You are welcome to test and play with it here

Also note that you need to set rel=0 as well.

Answer 2

Here is the iframe tag you can use, this is just your video in 'VIDOE_ID' & put repetable video id in 'REPEAT_VIDEO_ID_AGAIN'. It will work 100%.

<iframe width="600" height="315" src="https://www.youtube.com/embed/VIDOE_ID?rel=0&amp;controls=1&amp;showinfo=0&amp;autoplay=1&amp;loop=1&amp;iv_load_policy=3&amp;playlist=REPEAT_VIDEO_ID_AGAIN" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>