Many JavaScript errors will cause the page to not display. They essentially interrupt the browser while it is creating the page.Try putting a dummy condition on any action that uses one of these variables - something like MyURL2 Not Equal To samThis will always be true and the action will always run. The condition forces Lectora to make the variable available to Javascript on the page, something that does not always happen when using it in the VarMyURL2 format. For more information and training about how to use variables and JavaScript, click the link below and look under Lectora > Tips, Techniques, Secrets.