--- fixers.py.orig	2012-05-01 12:32:08.000000000 +0200
+++ fixers.py	2012-05-14 09:44:23.566725000 +0200
@@ -16,6 +16,8 @@
     :copyright: Copyright 2009 by the Werkzeug Team, see AUTHORS for more details.
     :license: BSD, see LICENSE for more details.
 """
+import select
+
 from urllib import unquote
 from werkzeug.http import parse_options_header, parse_cache_control_header, \
      parse_set_header
@@ -170,6 +172,14 @@
         Internet Explorer if `Content-Disposition` is set.  Can be
         disabled by passing ``fix_attach=False`` to the constructor.
 
+    -   removes extra CRLF characters added to POST requests.
+        Those both characters aren't read and causes the TCP RST from
+        server to client.  Can be disabled by passing
+        ``fix_crlf=False`` to the constructor.
+        see: http://support.microsoft.com/kb/823099/en-us,
+             http://trac.edgewall.org/ticket/8020,
+             http://blog.insightvr.com/uncategorized/ie7-bug-post-request-causes-ack-rst/
+
     If it does not detect affected Internet Explorer versions it won't touch
     the request / response.
     """
@@ -179,10 +189,11 @@
     # by Michael Axiak and is available as part of the Django project:
     #     http://code.djangoproject.com/ticket/4148
 
-    def __init__(self, app, fix_vary=True, fix_attach=True):
+    def __init__(self, app, fix_vary=True, fix_attach=True, fix_crlf=True):
         self.app = app
         self.fix_vary = fix_vary
         self.fix_attach = fix_attach
+        self.fix_crlf = fix_crlf
 
     def fix_headers(self, environ, headers, status=None):
         if self.fix_vary:
@@ -211,6 +222,11 @@
                 else:
                     headers['Cache-Control'] = header
 
+        if self.fix_crlf and environ['REQUEST_METHOD'] == 'POST':
+            while select.select([environ['wsgi.input']], [], [], 0)[0]:
+                if not environ['wsgi.input'].read(1):
+                    break
+
     def run_fixed(self, environ, start_response):
         def fixing_start_response(status, headers, exc_info=None):
             self.fix_headers(environ, Headers.linked(headers), status)