Why is the Shopify preview bar missing from my store? (Essential CRO Split AB Testing app)
Essential A/B Testing hides Shopify's theme preview bar on purpose. Theme tests work by showing a different theme to some visitors, and the preview bar would show the wrong theme to them.
The preview bar is only ever shown to logged-in staff, never to customers, so your store isn't affected.
If you need the preview bar to review a draft theme:
- add
&eaPreview=trueto the end of the preview URL, or - use the Preview option in the app, which adds this for you, or
- temporarily turn off the Essential A/B Testing app embed in that theme while you review it. Don't do this in a theme that's part of a live test.