From b72e4ecc3e564d3dcd03205b4998098dea5e2df0 Mon Sep 17 00:00:00 2001
From: ChampChamp <abiwiner520@gmail.com>
Date: Fri, 10 Apr 2026 22:29:02 +0900
Subject: [PATCH] Fix #1665: Handle long strings with spaces from CLI

---
 httpie/uploads.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/httpie/uploads.py b/httpie/uploads.py
index 4a993b3a25..42a736b9f6 100644
--- a/httpie/uploads.py
+++ b/httpie/uploads.py
@@ -267,3 +267,8 @@ def compress_request(
         request.body = deflated_data
         request.headers['Content-Encoding'] = 'deflate'
         request.headers['Content-Length'] = str(len(deflated_data))
+        content_type = request.headers.get('Content-Type') or b''
+        if isinstance(content_type, str):
+            content_type = content_type.encode()
+        if b'application/x-www-form-urlencoded' in content_type:
+            request.headers['Content-Type'] = b'multipart/form-data; boundary=httpie'