The same remarks as for the images are true, except that the repeat attribute is not working. The video will loop and autoplay by default. More command are available, when using the
To display the video on a plane, please use the tag <a-video>.
<a-box id="box_square" position="-1 0.5 -3" rotation="0 45 0" width="1.82" color="#FFF" src="videos/uhr_4.mp4" ></a-box>
It seems, there are problems to play videos with A-Frame on the smartphone (but not on the desktop). I recommend to use videos without audio and the following configurations:
On the smartphone the videos are not playing unless there is an action to start them.
autoplay does not work on smartphones, it needs an action to start or play the video.
Please use the example provided.