Merge

rhettinger · rhettinger · commit b7f3c944d1d0 · 2016-09-09T16:44:53.000-07:00
diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py
@@ -1686,7 +1686,7 @@ def __init__(self, proxies=None, **x509):
         self.proxies = proxies
         self.key_file = x509.get('key_file')
         self.cert_file = x509.get('cert_file')
-        self.addheaders = [('User-Agent', self.version)]
+        self.addheaders = [('User-Agent', self.version), ('Accept', '*/*')]
         self.__tempfiles = []
         self.__unlink = os.unlink # See cleanup()
         self.tempcache = None
