Form submission fails w 303 when inside iFrame on 'other' website.

I have Donation forms that work fine when not embedded.

However, when I embed the same form in an iFrame in another website that is not same-origin as my JoomDonation instance, after completing and submitting the form I do not get the thank-you message, instead it just reloads the cleared form. From my JDonation server access logs, I see that the POST resulted in a 303 and redirects to the same 'cleared' form. As well, I find in my payment processor logs (Stripe) there is a log entry "POST /v1/tokens" but no completed payment. Also, there is no record of any kind in the JDonation component.

Any ideas on how to make forms work in iFrames?

Hi Montana,
Could you please send me the link to your Iframe with Donation form?
Thanks
Dam

Page with iFrame embedded form that fails is:
sustainablekootenays.org/2020/04/22/dona...kootenay-resilience/

Same form in same-origin page, and that works, is:
charity.ecosociety.ca/wk-resilience

Thanks

Hi Montana,
Could you please enable Stripe test mode so i can test with fake credit card?
Thanks
Dam

Stripe is now in test mode.

Thanks.

Hi,
I am afraid that the Stripe payment gateway (Stripe Card Element) doesn't work on IFrame tag. Could you please try with another payment gateway?
Thanks
Dam