Web login issue

Andrew, I'm not 100% sure without investigating, but I believe the login button is always disabled on initial page load. It's then enabled via JavaScript, but presumably something's failing before we get to that point on the browser you're using.

Unless there's a specific security issue that we're mitigating, it's unlikely that we're intentionally disabling the button on unsupported browsers; it's more that we do no testing on those browsers and as a policy don't attempt to fix bugs that only affect unsupported browsers.

I realize this can be difficult if you're trying to use an embedded browser in your app, but browser compatibility is difficult, especially on a page like the login page, where we have to be extremely sensitive to security concerns and take advantage of as many modern browser security features as we can. My suggestion is the same as Gregory's: try to use the system's default browser if at all possible.