VaryByParam - but what are the params?

[atbjwalsh]

You write that the * should not be used but you don't give any concrete examples of what actual parameters are or can be.

Edit to add: https://learn.microsoft.com/en-us/dotnet/api/system.web.configuration.outputcacheprofile.varybyparam?view=netframework-4.8.1#remarks

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.