diff -r df7f66f290b9 -r f39110afc039 mercurial/hgweb/hgweb_mod.py
--- a/mercurial/hgweb/hgweb_mod.py	Tue Jan 22 09:11:06 2008 +0100
+++ b/mercurial/hgweb/hgweb_mod.py	Tue Jan 22 09:11:08 2008 +0100
@@ -212,7 +212,7 @@
                     req.form['cmd'] = [tmpl.cache['default']]
                     cmd = req.form['cmd'][0]
 
-                if cmd == 'file' and 'raw' in req.form['style']:
+                if cmd == 'file' and 'raw' in req.form.get('style', []):
                     webcommands.rawfile(self, req, tmpl)
                 else:
                     getattr(webcommands, cmd)(self, req, tmpl)