I found this issue with my organization's powerBI web (app.powerbi.com) when accessed via SSO.
Using Azure SSO service in place, when we access app.powerbi.com, we get redirected to an organization sign on page via MS Azure platform.
It seems that using Chrome, (as I also develope some other web applications) whenever I clear my cache for past 24 hours or 7 days, if the last time I accessed SSO page was way before the period of 24 hrs or 7 days, then I will end up hitting Internal Server Error (HTTP Error 500) when trying to access app.powerbi.com.
The workaround currently is to force user (myself) to clear my browser cache for "All time" in order to force app.powerbi.com to redirect me again to the organization sign on page again fresh.
A good quality web application should handle such flows and scenarios well. I expect app.powerbi.com should be able to detect if there is missing session cache from a valid SSO token to either force a redirect to re-sign in automatically or just auto generate the new session cache.
v-yetao1-msft
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