Heh, seems to be something with the wifi because it works fine with android+mobile network. Suspicious! Looks like a misconfigured dns server in the coffee shop. Sorry for the false call .
no no, it's not false! My friend on at&t has also noticed some really weird dns or server configuration issues with my server. It's a digital ocean cloud instance. I need to get to the bottom of it.
Here's a screenshot - https://imgur.com/a/SzVS75Q
Same in chrome. The cert is wrong, it has the cert of "search.dnsadvantage.com"