I've created HTML landing pages on a domain where WordPress is installed.
These pages have the URLs like the following:
http://www.domain.com/sample-page.html
http://www.domain.com/sample-page_Choices.html
If I attempt to navigate to the first page, most machines and browsers will redirect me to the second page. On some machines, clearing the cache will allow me to visit the first page. But if I then visit the second page and try to go back to the first, the redirecting starts again.
I know that WordPress will try to 'fix' incorrect, incomplete, improperly formatted, or unofficial versions of URLs to canonical URLs. I wasn't sure if that what was happening here. I tried the solution to that problem (seen here: http://www.mydigitallife.info/how-to-disable-wordpress-canonical-url-or-permalink-auto-redirect/) to no avail.
These pages are already involved in a Google Adwords A/B Experiment, so I would really prefer not to change the existing URLs.
Any ideas what's happening here?