I concur with your comments regarding f12 or equivalent on 1200 but wanted more testing time before reporting. However I do note comments about browser is still in pre development with an update in 2 weeks time. The devs has earned a well deserved break!
Only a quick play after download and runs nicely on both systems.
It’s good to see a newly developed browser for the next generation Amigas. Timberwolf for ppc systems showed promise but bit the dust and probably had a significant amount of resources thrown at it so all credit for this new browser.