fix: add cookies from proxy requests

src/handlers.py

@@ -9,8 +9,8 @@ import re
 import tarfile
 import typing
 import urllib.parse
-
 import requests
+import http.cookiejar
 
 from . import STAPLER_ASCII, logs, project
 from .data_dir import DataDir
@@ -163,6 +163,8 @@ class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
                 "date",
             ]:
                 self.send_header(header, value)
+        for name, value in response.cookies:
+            self.send_header("Set-Cookie", f"{name}={value}")
         self.send_header("Content-Length", str(out_size := len(response.content)))
         self.end_headers()
         if out_size > 0: