Better HTTP/1 connection reuse in Go 1.27

Automated excerpt

Most commonly, this is io. Copy(io. Discard, body) // Drain the response body before closing it. the body. A better approach is to cap the number of bytes we are willing to io. CopyN(io. Discard, body, 256<<10) // Only drain up to 256 KB. io. CopyN(io. Discard, body, 256<<10) // Only drain up to 256 KB. // Only spend at most 50 ms trying to drain the response body. // If we reach the 50 ms timeout, body. Close will run and interrupt the response body. Instead, we can drain the body asynchronously in the background io. CopyN(io.

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