(File Form Field Type) does not work

Mautic: v3.3.3
PHP: 7.3.27
MariaDB: 10.5
Docker: v19.03.13
Traefik: v2.3.1

How to reproduce:

1 - I created a data base custom field type “URL” called “curriculo”. Picture bellow:

2 - I created a form field type “file” as bellow:

image

My problem is:

Issue 1: When I submit the form the Bottom show: “Please Waiting…” and do not redirect to the “Thank you page” post sucessfull submit.

Issue 2: When I go to the Contact record to see the file uploaded by the form, it does not show the full URL to download it. It saves into mautic /media/ folder but do not record the full URL. Screenshot bellow:

image

Important Information: I have another installation of mautic version v2.16.3 and it works very well.

Please any suggestion of how to fix it?
Thanks in advanced for any comments or help.

Done!

The reason it happens is becouse the oficial docker image is mission the exif php extention.
I have done this docker-php-ext-install exif inside the container and the issue was solved.

It is a know issue, already reported here:

Thanks a lot!
Best regards!