Information about your running experiments (a script served by Nelio Cloud).
If you use a WordPress minification plugin (such as Better WordPress Minify or WP Minify), you'll have to make sure that the first and second scripts appear before the third one. If one of them appears after the minified version of tracking.min.js, Nelio A/B Testing won't work. If that were the case, make sure you exclude it from the minification process. In particular, exclude the entry called nelioab_tracking_script.