Fix cookie logout

diff --git a/libs/web/luasrc/sauth.lua b/libs/web/luasrc/sauth.lua
index 8ae24a5..c06acdd 100644 (file)
--- a/libs/web/luasrc/sauth.lua
+++ b/libs/web/luasrc/sauth.lua
@@ -57,7 +57,7 @@ end
 -- @param id   Session identifier
 -- @return             Session data
 function read(id)
-       if not id then
+       if not id or #id == 0then
                return
        end
        if not id:match("^%w+$") then