Browser Asks for Authentication on Pages With a Feed

Our plugin uses admin-ajax.php to retrieve feed data from the WordPress database. This is part of our caching system to prevent reaching the rate limit for access tokens. You may have a security plugin that is causing the site visitor to log-in every time they view the page. You can either disable the security plugin or disable caching for Instagram Feed by changing the “Check for new posts every” setting to “0” on the “Customize” tab.