Flush body writers after they are terminated

src/client.rs

@@ -313,19 +313,22 @@ where
  let mut writer = ChunkedBodyWriter::new(c);
  body.write(&mut writer).await?;
  writer.terminate().await.map_err(|e| e.kind())?;
+ writer.flush().await?;
  }
  HttpConnection::PlainBuffered(buffered) => {
  let (conn, buf, unwritten) = buffered.split();
  let mut writer = BufferingChunkedBodyWriter::new_with_data(conn, buf, unwritten);
  body.write(&mut writer).await?;
  writer.terminate().await.map_err(|e| e.kind())?;
+ writer.flush().await?;
  buffered.clear();
  }
  #[cfg(any(feature = "embedded-tls", feature = "esp-mbedtls"))]
  HttpConnection::Tls(c) => {
  let mut writer = ChunkedBodyWriter::new(c);
  body.write(&mut writer).await?;
  writer.terminate().await.map_err(|e| e.kind())?;
+ writer.flush().await?;
  }
  #[cfg(all(not(feature = "embedded-tls"), not(feature = "esp-mbedtls")))]
  HttpConnection::Tls(_) => unreachable!(),