World's easiest to use A/B, Split and Multivariate testing tool.
The issue happens when the VWO tracking code is added to the page twice. So do make sure that when you are using the plugin, any other instance of the VWO tracking code should be removed from the page. If you still face issues, try switching to the Sync version of code (presented as option inside the plugin).
I have same problem with kathycook, I am seeing blank screen in chrome, safari.
Since activating this plugin on our corporate website (which is run on WordPress 3.5.1) we are seeing blank pages in Chrome consistently, and sometimes in Firefox (not IE) - this is cleared to reveal page content on 1/2/3 sometimes 4 page refreshes - clearly not a great experience. Deactivating the plug-in has cleared the issue.
I have installed with Asynch code set-up.
I may have got something wrong in the install?
Insufficient instructions with the Plug-in - including to use it to set-up tests in VWO make it unclear.