Move url checks after unicode conversion

ckan/lib/helpers.py

@@ -153,21 +153,22 @@ def redirect_to(*args, **kw):
         toolkit.redirect_to('dataset_read', id='changed')
 
     '''
+    if are_there_flash_messages():
+        kw['__no_cache__'] = True
+
+    # Routes router doesn't like unicode args
+    uargs = map(lambda arg: str(arg) if isinstance(arg, unicode) else arg,
+                args)
+
     # Remove LANG from root_path so that we do not need to parse locales
     root_path = config.get('ckan.root_path', None)
     if root_path:
         root_path = re.sub('/{{LANG}}', '', root_path)
 
     # If args contain full url eg. http://example.com or url starting with root_path skip url parsing
-    if args and (is_url(args[0]) or ( root_path and args[0].startswith(root_path))) :
-        return _routes_redirect_to(args[0])
+    if uargs and (is_url(uargs[0]) or ( root_path and uargs[0].startswith(root_path))) :
+        return _routes_redirect_to(uargs[0])
 
-    if are_there_flash_messages():
-        kw['__no_cache__'] = True
-
-    # Routes router doesn't like unicode args
-    uargs = map(lambda arg: str(arg) if isinstance(arg, unicode) else arg,
-                args)
     _url = url_for(*uargs, **kw)
     if _url.startswith('/'):
         _url = str(config['ckan.site_url'].rstrip('/') + _url)