I am using paypal payments standard, and everything seems to be working except for the link on paypal's site that allows the user to cancel the operation and return to our store. That url that that link tries to go to is: http://localhost:443/main/Store/tabid/77/ctl/Confirm/mid/412/Default.aspx?PayPal=Cancel What are the possible reasons for this link timing out?

We are running the store page under ssl, and this return link is using port 443, but not explicitly declaring https. If I manally put in https and take off the port 443 with the rest of the url the same, it at least brings me back to the cart with an null reference error message instead of timing out. I haven't seen any settings where I have any control over this, on either the cart side, or paypal side. Where am I going wrong?

Thanks for the reply. I tried it in the production environment with a real certificate and get the same result. The page still hangs upon returning from paypal.

It's coming back as http with the port number.  I have not used fiddler, but say I found something odd, how would I go about fixing it given that this link is generated by the cart?