Grafana 7.0.0-beta3 Windows - needs newer Chrome and Firefox

Hi all! I installed 7.0.0 beta3 on Windows. Attempting to login with 1 year old Chrome or Firefox would just result in an “Unauthorized”. I searched through the forums for some hint of what might be going on, and saw where someone said something about needing a newer version of the browser. So I tried installing newer versions, and I am able to get in.

Is there some flag I can set in the Grafana config to allow it to work with older browser versions? For various reasons, it’s not easy to get browser upgrades into the environment into which we are installing Grafana.