Client-side replay does what it says on the tin: you provide a previously saved HTTP conversation, and mitmproxy replays the client requests one by one. Note that mitmproxy serializes the requests, waiting for a response from the server before starting the next request. This might differ from the recorded conversation, where requests may have been made concurrently. You may want to use client-side replay in conjunction with the [anticache](@!urlTo("anticache.html")!@) option, to make sure the server responds with complete data.
command-line -c path
mitmproxy shortcut c