Is it possible to upload multiple files at once?

[GalinhaLX]

Based on previous discussion #839 ,

Is there a way to upload multiple files at once with mavo?

I've made this codepen, based on @DmitrySharabin answer to previous discussion

I got an error message saying 'not found', and unfortunately the console doesn't display anything to help me.

-> My goal is to upload multiple images, so I could display a photo gallery