Web app says my browser is not supported, but it likely is.
I'm using Vivaldi, which is basically chrome, with much better user experience.
It supports the same features, as it uses the same rendering engine, same JS engine, same everything.
Despite that I get a message that my browser is unsupported.
My guess is that instead of feature detection you do a browser detection and if it does not fall into the bucket of Mozilla or Chrome, you stubbornly show a message about the browser being unsupported without even giving the user an option to take the risk and go through with their browser.