CaptivePortal issue on Fairphone Open OS?

[Roboe]

I regularly login to the Madrid bus Wi-Fi without problems.

See this topic too:

Log in a captive network introducing password through web browser

Dear all, the shared Wifi at my work requires a password through the browser similar to how it is in many airports or hotels. This particular wifi is categorized not safe also by other devices. However on other devices I can click a link in the browser similar to ‘connect anyway’. The fairphone leads me to a special log in page just showing a big red lock sign with no option to connect anyway. The options I get in the menu are ‘do not use this network’ or ‘use this network as is’. When choos…