Do you have our SSL plugin enabled? Do you need it? You most likely have that plugin enabled and also have something else generating a secure URL... causing the redirect... and it likely has nothing to do with a category list. That's the best guess based on minimal info. Hope that gets you in the right direction.
Nathan is no longer affiliated with DTH since the recent acquisition. You can connect with him and get any type of Joomla website help at
www.JoomlaEmployee.com
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