I've contacted X-Cart tech support about a problem and they say the problem is in the One Page Checkout. How can I tell what is an X-Cart issue vs. a One Page Checkout issue?

To determine if the X-Cart code is the cause, or if the One  Page Checkout is the cause, you can switch back and forth between the default  multi-page checkout and the One Page checkout for your session only.  This is done by adding &co_disable=Y  to the end of the URL. Example:


You can then switch back to the One Page Checkout  with this URL:


For example,if you are having trouble loading  shipping methods. If they load correctly using the default X-Cart multi-page  checkout, but not in the one page checkout, the issue is with your shipping  setup. 

If you determine that the problem doesn't exist in the  default X-Cart checkout please contact alteredCart for support.  If the issue is also present in the multi-page  checkout, the issue is in your store configuration, or code.  You will need to contact X-Cart support to fix this problem.