Hi, I have installed the Google Checkout module for osCommerce v2.2RC1 (I have v2.2RC2a, but I was able to make changes as necessary). In sandbox mode, the checkout buttons worked at first, but since then I have made some modifications and now when I click the Google Checkout button from the shopping cart, the only response is for the page to be reloaded.
The code for the button, generated by GoogleCart->CheckoutButtonCode(), looks correct. I even tried reinstalling the entire module on a backup copy of the site (using the existing database), and the result is the same, which leads me to believe that I have an error with my settings.
Can you help me solve this? Here is as much relevant information as I can think to give:
From the GoogleCheckout module configuration:
Enable GoogleCheckout Module: true
Select Mode of Operation: https://sandbox.google.com/checkout/
Production/Sandbox Merchant ID/Key: (checked and are correct)
.htaccess Basic Authentication Mode: true (fixed "Failed to Get Basic Authentication Headers;" I ran a provided script to facilitate this, and it seemed to work afterwards)
Select Merchant Calculation mode of Operation: http
GoogleCheckout Carrier Calculated Shipping: true
Carrier Calculater(sp!) Shipping Configuration: (take for granted it is correct)
Continue shopping URL: http://(store addr)/gc_return.php
From the Google Checkout Sandbox Settings->Integration page:
My company will only post digitally signed carts: true
API callback URL: http://(store addr)/googlecheckout/responsehandler.php
Callback method: XML
Advanced settings: all default false values
The other changes I made shouldn't affect how that button actually functions. I have checked the error/message logs on my server side as well as the Tools->Integration Console on the Sandbox side, and none of them have any details whatsoever.
I appreciate any help you can give! Thanks!!