In the standard case ABlyft checks the targeting conditions (audiences and pages) when a page is loaded (at every request/reload of a page).
If you run a Single Page Apllication (SPA) and want to do A/B testing there, there are settings for the Activation Mode on the project.

Immediately

This is the default activation mode. The condition check (and the changes) are running as soon as the page loads. This happens only once per request/page load.

On API Call

You can use this option, when you want to trigger the start of ABlyft from your side.
That would be the case, for example, if you...

  • run a Single Page Application and a route changed (and you have a hook/callback for that) 
  • only or again want to run the Project (condition/targeting check and changes), when a certain action occurred
window.ablyft.reInit();

On DOM Change

If you have chosen this mode, ABlyft will be informed when a page is changed - or more precisely: when elements are loaded/inserted or removed in the DOM.
This is done using the MutationObserver (https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver).

On URL Change

This mode constantly checks whether there is a change in the URL. It doesn't matter how you change the URL (as long as it doesn't work with a new page load/redirect). It also looks at changes to the hashes (#).
This function is solved over an interval, which checks every 50ms. 

 

 

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