Use copy.deepcopy to clone HTTPRequest when following redirects.

This gives each request in a redirect chain its own copy of the
headers dictionary.

Closes #459.

diff --git a/tornado/simple_httpclient.py b/tornado/simple_httpclient.py
index aa2bec637d08433300b5624783805438d0ec5715..26c32d3751caa6450f6c9adc76c585c2b61ad5c3 100644 (file)
--- a/tornado/simple_httpclient.py
+++ b/tornado/simple_httpclient.py
@@ -391,7 +391,7 @@ class _HTTPConnection(object):
         if (self.request.follow_redirects and
             self.request.max_redirects > 0 and
             self.code in (301, 302, 303, 307)):
-            new_request = copy.copy(self.request)
+            new_request = copy.deepcopy(self.request)
             new_request.url = urlparse.urljoin(self.request.url,
                                                self.headers["Location"])
             new_request.max_redirects -= 1