1

I shared a Dashboard with public access and add &refresh=xx param for auto-refresh, but it will refresh and read directly from database not cache. I have set some Refresh Schedule for needed queries.

A public user should only have read from cache permission, I think.

Or add a new param use for auto-refresh and read from cache?

Am I Missing Something?

2

read from cache permission would be helpful to avoid abusing the database from public visitors.

Right now, public dashboards without parameters can only read from the cache. They only re-execute against the database if a cached value is unavailable (maybe it was cleaned up by accident).

Dashboards with parameters can re-execute if the user changes a parameter value. But they will still load a cached value onLoad if one is available.