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Task: Fix HTTP 417 "Expectation Failed" Error in .NET HTTP POST Request

Task: Fix HTTP 417 "Expectation Failed" Error in .NET HTTP POST Request: a task in Terminal-Lego-15k (Harbor dataset). When making HTTP POST requests using .NET's WebClient , HttpWebRequest , or HttpClient , some servers reject requests that include the Expect: 100-continue header (which .NET adds…

The task

When making HTTP POST requests using .NET's `WebClient`, `HttpWebRequest`, or `HttpClient`, some servers reject requests that include the `Expect: 100-continue` header (which .NET adds by default), returning a `417 Expectation Failed` error.

Part of PrimeIntellect/Terminal-Lego-15k.