fix: ignore body should not set content-length of streaming (#1406)

* fix: ignore body should not set content-length of streaming https://github.com/valyala/fasthttp/pull/1022

* fix: add commit

1 files changed, 5 insertions, 1 deletions

diff --git a/http.go b/http.go
index 97bf5d6..62ba30f 100644
--- a/http.go
+++ b/http.go
@@ -1287,7 +1287,11 @@ func (req *Request) ContinueReadBodyStream(r *bufio.Reader, maxBodySize int, pre
 		// the end of body is determined by connection close.
 		// So just ignore request body for requests without
 		// 'Content-Length' and 'Transfer-Encoding' headers.
-		req.Header.SetContentLength(0)
+
+		// refer to https://tools.ietf.org/html/rfc7230#section-3.3.2
+		if !req.Header.ignoreBody() {
+			req.Header.SetContentLength(0)
+		}
 		return nil
 	}