It looks like the #gform_ajax_frame_(n) iframe loaded without any reference to jQuery, so the form is not able to be submitted.
It looks like the #gform_ajax_frame_(n) iframe loaded without any reference to jQuery, so the form is not able to be submitted.
Can you link to your form please?
https://sachasterling.com/test/
I'm investigating whether it's a problem with the Stripe plugin in particular, or any Gravity form.
Turns out it's a bug in the Stripe plugin. False alarm, feel free to delete this thread.
I'll leave it here, but close it, in case anyone else has the same issue, they'll know where to look.