Question:
How do I set AuthorizeNet SIM to automatically return my shoppers browsers to the shopping cart's receipt page?

Answer:
AuthorizeNet doesn't have this option.

According to our records, AuthorizeNet SIM has never auto redirected shoppers browsers back to the shopping cart after they accept their credit card data.

For many years we employed a trick that caused their browser to auto redirect by passing some meta tags that caused the redirection after the transaction. However, MSIE has recently started stripping out meta tags that are passed in form data, viewing them as a security risk.

Make sure you have the Pending Order Notice in Secure Server Variable #13 set so you will get the order details. Your shoppers will need to click on a link on the AuthorizeNet page to return to the cart to get their email receipt, but if they do not, you still have a copy of the receipt in the Pending Order Notice.