Trickster gives 502 when there's more than one backend in Prometheus

[keithshum]

Hello team,

Today we have been reported an issue with Trickster returning 502 status code on user's dashboard.

Further investigation shows that...

1. This only happens when there's more than one members in an ALB prometheus backend.
2. Commit we are using is a0efc6d.

When we switched back to an older commit build cbbe20f, issue's gone.

Thanks,
Keith

[jranson]

Fixed in #916 and included in v2.0.1