[galaxy-user] Page edition bug

Hi Galaxy team, I have two instances of galaxy on the same host, and have enabled page edition (I set enable_pages = True on universe_wsgi.ini file). I have set the parameter "cookie_path" different for each instance. I'm disconnected from galaxy when I try to edit a page content. But when I comment out the "cookie_path" for one instance it works for this instance. Did I miss something when configuring my instance ? Can someone give me some help ? I've tried to have a look at in the code but I'm not familiar with python. Thank you all, Felix Homa.