Quote Originally Posted by njcyx View Post
One more update. Unfortunately, "Whoops! Your session has expired." issue on order_status page on my site is still there. If I opened an Incognito windows or clean my browsers' cookies, and if I directly visit the order_status page, after I submit the form, I will see the expired session note there. But if I visited any links on my site at first then visit order_status page, it will function properly.

The updated htaccess file seems to fix my Go Back & Go Forward error then.

I tried an OPC demo site and that site worked fine. So it is something wrong on my site then. Well well, another headache on my site then...
2nd update. Hi @lat9, for your demo site, can you please help me to check if your admin/configuration/sessions/force cookie use is set to true or false?

My site is set to true. After I changed it to false, my order_status page works properly. If your site is set to false, you can set it to true and see if you can reproduce my issue.

I tried to search force cookie use in the forum and I could only find some very old posts. So in zc 1.57d, is it recommended to set it as true or false?