In order to resolve this issue you'll need to adjust the Affirm Checkout Flow Type settings to use the modal checkout flow. Because this is the default setting in Magento 2 and Magento 1 has been officially deprecated, we recommend upgrading to Magento 2.
However, if you aren't quite ready to upgrade yet, you'll need to make this change in your admin settings to use the modal flow instead of the redirect flow.
We strongly recommend making these updates in a staging environment before pushing them to production. If you encounter any issues related to the Affirm plugin, please let us know and we’d be happy to assist.
Updated over 2 years ago