[osCommerce] Conflicts with One-Page-Checkout contribution

[soundsavers]

Hi,

I am requesting on behalf of Soundsavers assistance with a problem we are facing whilst trying to install the 'One-Page-Checkout' contribution for OSCommerce v2.2.
After following instructions, a 404 error occurs when progressing to the shipping section of the checkout process. As far as I can tell this is due to malformed URL's as a result of the .htaccess file generated by your software.

Could assistance be provided, perhaps this problem has occurred on other sites you're aware of?

How is modifying fundamental operational pages of the site possible while the URL string's are being statically defined by your software?

I look forward to your response
Sam

[inveo]

MSU is working fine with One-Page-Checkout add-on. Did you test it with MSU disabled?

[soundsavers]

No. How do I go about disabling MSU?

[inveo]

Comment out installation line in includes/application_top.php file and delete/rename .htaccess file.

[soundsavers]

After doing as you've stated, the system was closer to working as expected due to the checkout.php file included in the add-on being correctly linked to.

However the optimized URL's are essential to the working's of the company which means we need to leave your software activated. Can the .htaccess file have a rule added to it to ensure that checkout.php works as expected? How would I go about doing this?

[inveo]

In order to tell you what exactly is wrong, I will need steps how to reproduce the problem.

[soundsavers]

Upon following the instructions outlined in the package for installing an add-on, 'single page checkout' found here, http://www.oscommerce.com/community/contributions,6394, clicking checkout from the sites homepage results in a 404.

This, I think, is because the .htaccess file instructs the browser to point at a shipping.html page which is no longer used for the checkout however I'm not certain about that as the syntax in the .htaccess file is fairly confusing.
Simply uploading any file called checkout.php has the same 404 result.

[inveo]

clicking checkout from the sites homepage results in a 404.

What exact URL is then in address bar?

[soundsavers]

http://www.soundsavers.com/catalog/chec ... pping.html

[inveo]

I reviewed your web site and I see you are using a workaround for incorrectly configured mod_negotiation which is loaded into Apache. mod_negotiation is also responsible for issue you are now reporting.

The only way how to use One-Page-Checkout on your host is to rename checkout.php file to something else.