Benedict Wallis

Thanks for taking a closer look.

We do have a custom handler in place for international orders which restricts the available payment gateways. However, this logic only affects the list returned via woocommerce_available_payment_gateways, and doesn’t touch any script loading or REST setup.

I will look to create a support ticket.

Hi @mrclayton Thanks for the quick response,

It’s a bit difficult for me to leave the plugin enabled in production, but I’ve done local debugging and wanted to share what I’ve found:

The error originates from originates from assets/js/ppcp/cart.js during this call:

const response = await apiFetch({
    method: 'POST',
    url: getRestRoute('cart/refresh'),
    data: { page: this.page },
});

This uses the helper in utils.js:

export const getRestRoute = (route) => {
    return getSetting('generalData')?.restRoutes?.[route]?.url || null;
};

However, getSetting('generalData') seems to return undefined, which causes the function to return null, and the request ends up being sent to /checkout/ instead of a valid REST endpoint, which returns HTML, not JSON — triggering the error.

Hopefully this helps! Let me know if you have any further info…