Hi team, 
the stripe popup checkout does not respect free trials. It just collects the full amount directly after signup. 
Steps to reproduce: 
1. Create a subscription plan with a free trial 
2. As a user, sign up for the plan using stripe popup checkout
3. Go to stripe or payplans dashboard to check for transactions
Actual result: 
A transaction is performed, although the user is in a free trial
Expected result: 
User should only be charged, once the trial is over.