If you set this payment gateway HostedIframe for the custom checkout flow, the flow can be blocked by the JS code because it throws an exception and token and expire values are not provided.
There is a hardcoded class .commerce-checkout-flow-multistep-default which might be missing in the custom checkout flow.
I suggest using just a .commerce-checkout-flow class or refactoring JS code and removing hardcoded class.

diff --git a/js/hosted-iframe.js b/js/hosted-iframe.js
index 726d320..d81c301 100644
--- a/js/hosted-iframe.js
+++ b/js/hosted-iframe.js
@@ -14,7 +14,7 @@
       }

       const form = document.querySelector(
-        '.commerce-checkout-flow-multistep-default',
+        'form.commerce-checkout-flow',
       );
       if (form.classList.contains('hosted-iframe-form')) {
         return;

Issue fork commerce_cardpointe-3567295

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s_kulyk created an issue. See original summary.

s_kulyk’s picture

s_kulyk commented
Issue summary: View changes

tomtech made their first commit to this issue’s fork.

tomtech opened merge request !32

  • 619fc8dc committed on 1.x 
    fix: #3567295 JS code can block the checkout flow

By: s_kulyk
By:...
tomtech’s picture

tomtech commented
Assigned: Unassigned » tomtech
Status: Needs work » Fixed

@s_kulyk,

Thanks for the report!

This was actually already addressed in 2.x.

I've back ported the same fix. (We are moving toward using data properties, rather than css class names for things like this.)

Now that this issue is closed, review the contribution record.

As a contributor, attribute any organization that helped you, or if you volunteered your own time.

Maintainers, credit people who helped resolve this issue.

tomtech’s picture

tomtech commented
Related issues: +#3562139: checkout selector is limiting

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.