Play nicely with other DelegatingHandlers?

[tmenier]

I noticed that HttpClientFactory doesn't allow for adding an inner DelegatingHandler to the request pipeline. I see you can do this by creating a ReplayingHandler directly, but then you're on the hook for defining the full path to JSON file. Maybe there's a best-of-both-worlds approach where HttpClientFactory supported DelegatingHandlers?

[tmenier]

Actually HttpClient.GetFixturePath does make it significantly easier, I didn't notice that at first. Just for fun I was experimenting with how well this might integrate with my Flurl library. Pretty nicely I think: https://gist.github.com/tmenier/0d2221b01f902e26312bca8eca204c7d