Show external image in Data View

My data source is a remote SQLite database. No problem to link database.

In a table there are a list of url that point to online jpg files.

In data visualization list I would like to show those images.

I use TEXT element in which I write HTML code to show each image.

<img src="[image-filed]" alt="" />

This works inside Mobincube simulator but when I install the preview app in my Android phone the images are not displayed.

What's wrong?

Is there another way to implement this?

Thank you.

Fabio