From 46b00945e7d7aecef823cccd81731ba6d883e32e Mon Sep 17 00:00:00 2001
From: zuisong <com.me@foxmail.com>
Date: Tue, 26 Mar 2024 15:12:42 +0800
Subject: [PATCH] fix: accidentally set content-length to 0

---
 src/async_impl/body.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/async_impl/body.rs b/src/async_impl/body.rs
index ff5446e53..e081e0d79 100644
--- a/src/async_impl/body.rs
+++ b/src/async_impl/body.rs
@@ -268,9 +268,11 @@ impl HttpBody for Body {
     fn size_hint(&self) -> http_body::SizeHint {
         match self.inner {
             Inner::Reusable(ref bytes) => {
-                let mut hint = http_body::SizeHint::default();
-                hint.set_exact(bytes.len() as u64);
-                hint
+                if bytes.is_empty() {
+                    http_body::SizeHint::default()
+                } else {
+                    http_body::SizeHint::with_exact(bytes.len() as u64)
+                }
             }
             Inner::Streaming(ref body) => body.size_hint(),
         }