--- urllib2.py	2010-04-16 16:58:00.000000000 +0300
+++ urllib2_new.py	2010-12-10 13:16:21.000000000 +0200
@@ -525,7 +525,7 @@
     # assuming we're in a loop
     max_redirections = 10
 
-    def redirect_request(self, req, fp, code, msg, headers, newurl):
+    def redirect_request(self, req, fp, code, msg, headers, newurl, newhost):
         """Return a Request or None in response to a redirect.
 
         This is called by the http_error_30x methods when a
@@ -548,6 +548,7 @@
             newheaders = dict((k,v) for k,v in req.headers.items()
                               if k.lower() not in ("content-length", "content-type")
                              )
+            newheaders.update({"Host": newhost})
             return Request(newurl,
                            headers=newheaders,
                            origin_req_host=req.get_origin_req_host(),
@@ -571,6 +572,7 @@
 
         # fix a possible malformed URL
         urlparts = urlparse.urlparse(newurl)
+        newhost = urlparts[1]
         if not urlparts.path:
             urlparts = list(urlparts)
             urlparts[2] = "/"
@@ -581,7 +583,7 @@
         # XXX Probably want to forget about the state of the current
         # request, although that might interact poorly with other
         # handlers that also use handler-specific request attributes
-        new = self.redirect_request(req, fp, code, msg, headers, newurl)
+        new = self.redirect_request(req, fp, code, msg, headers, newurl, newhost)
         if new is None:
             return
 
@@ -610,7 +612,6 @@
               "lead to an infinite loop.\n" \
               "The last 30x error message was:\n"
 
-
 def _parse_proxy(proxy):
     """Return (scheme, user, password, host/port) given a URL or an authority.