Always downcase MIME header parameter names.

diff --git a/wrw/proto.py b/wrw/proto.py
index d2762d5..7df66ff 100644 (file)
--- a/wrw/proto.py
+++ b/wrw/proto.py
@@ -63,7 +63,7 @@ def pmimehead(hstr):
             break
         p += 1
         v, p = token(p, ';')
-        pars[k] = v
+        pars[k.lower()] = v
     return val, pars
 
 def htmlq(html):