URL Parameters

Append these to any page URL to control Shoplift's behavior without modifying code.

Parameter	Effect
?slVariant=<hypothesisId>	Forces isHypothesisActive() to return true for the specified hypothesis, false for all others
?slVariant=true	Forces isHypothesisActive() to return true for all hypotheses
?isShopliftMerchant=true	Switches Shoplift into merchant preview mode (stub API, no test assignment or tracking)
?isShopliftMerchant=false	Exits merchant preview mode

isShopliftMerchant persists in sessionStorage — once set, it affects all subsequent pages in the same browser tab until the session ends or you explicitly set ?isShopliftMerchant=false.

Examples

Force a specific variant:

https://yourstore.com/products/example?slVariant=aa800953-3e22-4335-a53b-50f61db17538

Force all variants active (useful for visual QA):

https://yourstore.com/?slVariant=true

Enter merchant preview mode:

https://yourstore.com/?isShopliftMerchant=true

Exit merchant preview mode:

https://yourstore.com/?isShopliftMerchant=false