Fix Content-Type header update for non-empty data in set_curl_options (#658)

sarperavci · web-flow · commit dfde525b001f · 2025-11-06T09:08:33.000+08:00
diff --git a/curl_cffi/requests/utils.py b/curl_cffi/requests/utils.py
@@ -455,7 +455,7 @@ def set_curl_options(
         update_header_line(
             header_lines, "Content-Type", "application/x-www-form-urlencoded"
         )
-    if isinstance(data, (str, bytes)):
+    if isinstance(data, (str, bytes)) and data:
         update_header_line(header_lines, "Content-Type", "application/octet-stream")
 
     # Never send `Expect` header.

Original file line number	Diff line number	Diff line change
`@@ -455,7 +455,7 @@ def set_curl_options(`
`455`	`455`	`update_header_line(`
`456`	`456`	`header_lines, "Content-Type", "application/x-www-form-urlencoded"`
`457`	`457`	`)`
`458`		`- if isinstance(data, (str, bytes)):`
	`458`	`+ if isinstance(data, (str, bytes)) and data:`
`459`	`459`	`update_header_line(header_lines, "Content-Type", "application/octet-stream")`
`460`	`460`
`461`	`461`	# Never send `Expect` header.