Summary

We are starting to use VWO as an A/B testing tool on the GPI website, but are noticing a flicker that shows the wrong variation for a brief second. We avoided this when we used Google Optimize through the Anti-Flicker Snippet, but now that Google Optimize has been sunset, we need to update this snippet for VWO.   

Requirements

• Add an Anti-Flicker template snippet to support VWO, same as we used to have for Google Optimize.
• Use the same option (checkbox) from PLANET-7675. But adjust its description:
  • Help text: Adds a Content Security Policy exception for VWO and enables its anti-flicer mechanism. Don't enable this if you are A/B testing with other tools.
• This code snippet allows VWO to keep the body hidden while the changes
  are being applied. It should be injected when the opt-in option above is enabled.

  vwo_$("body").vwoCss({"visibility":"visible !important"});
  

Resources

• VWO anti-flicker instructions