HADashboard iFrame Widget - Dynamic URLs

Is there any way to make a website URL or an image path dynamically generated?

In HA I can do the following:
url: >-
+states[‘input_text.blink_update_timestamp’].state +’.mp4’}

This uses a fixed URL plus an HA input_text value to get the latest clip from my Blink camera. It works well in HA but I cannot find a similar capability in HADashboard. The HA input_text value changes every time there is a new video recorded.

Any ideas are appreciated.