Looking for help in diagnosing a specialized search engine plugin

I need to (once again) integrate the BASE search engine (Bielefeld Academic Search engine) into DEVONagent. This was working a few years ago, but now, when trying to create the plugin, DEVONagent does not seem to see any results at all on the results page.

Steps to reproduce:

Can anyone suggest how I could get this to work? The results page looks to be pretty standard HTML to me, so I don’t know how to proceed…

This page uses now an anti-bot detection to validate that it’s only accessed by humans.

Oh, I see. Thanks for the quick reply. I’ll see if I can give it a custom user agent string…