[Zen Cart] Broken Checkout Sage Pay

[benwilliamson]

Hi, we use SagePay to process our cards. At the checkout, the visitor leaves our website to go to SagePays' processing page, then is redirected back to our site with an encrypted token in the url: e.g.:

http://www.ourdomain.co.uk/index.php?main_page=checkout_process&crypt=11\\Vc+JwkUYDw2Ahc8VwUBegMFZ3JeVAB9Q1pHb1oZAncGAmFuV1UGc0FYRmhcBRUUY2EEOy8CCT9CKUdddRpWXcKdR5wZABVSwV8MV9eaC4MCm8FBhF7I1QFB0ApRGsXEmA2UkYlMFspf2ImGRItH0d3J0dTOSd\\\\9bVgR0RU1JeT5cVmJyRyQrCRRdNxQZGjYEFEQjQBIDNgUFUTcGCwY1RB

Sometimes, this causes an error and we suspect that this is because MSU is redirecting incorrectly because of the encrypted token.

How do we exclude index.php?main_page=checkout_process from MSU?

[inveo]

It does seem to be related to MSU (index.php?main_page=checkout_process is excluded by default to avoid problems with checkout process).