symfony
diff --git a/‎src/Symfony/Component/HttpClient/CurlHttpClient.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpClient/CurlHttpClient.php
+3-2Lines changed: 3 additions & 2 deletions b/‎src/Symfony/Component/HttpClient/CurlHttpClient.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpClient/CurlHttpClient.php
+3-2Lines changed: 3 additions & 2 deletions
@@ -246,8 +246,9 @@ public function request(string $method, string $url, array $options = []): Respo
 
             if (isset($options['normalized_headers']['content-length'][0])) {
                 $curlopts[\CURLOPT_INFILESIZE] = (int) substr($options['normalized_headers']['content-length'][0], \strlen('Content-Length: '));
-            } elseif (!isset($options['normalized_headers']['transfer-encoding'])) {
-                $curlopts[\CURLOPT_INFILESIZE] = -1;
+            }
+            if (!isset($options['normalized_headers']['transfer-encoding'])) {
+                $curlopts[\CURLOPT_HTTPHEADER][] = 'Transfer-Encoding:'.(isset($curlopts[\CURLOPT_INFILESIZE]) ? '' : ' chunked');
             }
 
             if ('POST' !== $method) {