fixed issue 1118, reload page when called by component, thanks Paolo

VERSION

@@ -1 +1 @@
-Version 2.2.1 (2012-10-29 09:06:49) stable
+Version 2.2.1 (2012-10-29 09:28:14) stable

gluon/http.py

@@ -140,7 +140,7 @@ class HTTP(BaseException):
         return self.message
 
 
-def redirect(location, how=303, client_side=False):
+def redirect(location='', how=303, client_side=False):
     if location:
         from gluon import current
         loc = location.replace('\r', '%0D').replace('\n', '%0A')
@@ -150,3 +150,8 @@ def redirect(location, how=303, client_side=False):
             raise HTTP(how,
                        'You are being redirected <a href="%s">here</a>' % loc,
                        Location=loc)
+    else:
+        from gluon import current
+        if client_side and current.request.ajax:
+            raise HTTP(200, **{'web2py-component-command': 'window.location.reload(true)'})
+