Created attachment 342845 [details] Screenshot of "unsupported browser" message on Google Drive. I get an "Unsupported Browser" nag message on drive.google.com. I tried shutting it up by setting Epiphany's global US as Safari 11.1 on Mac and as Chromium 67 on Linux, and neither of them worked. Using Epiphany 3.28.3.1 on WebkitGTK 2.20.3 on Fedora 28. Screenshot of the message is attached.
I've verified that user agent is not to blame. Since we don't know what it's looking for, there's not really anything we can do.