Use the glide.ui.concourse.onmessage_enforce_same_origin property to enable cross-origin communication between iframes.

Openframe can only process messages from trusted domains that are specified in the glide.ui.concourse.onmessage_enforce_same_origin_whitelist property. To learn more, see Specify UTL allow list for cross-origin iframe communication.

More information

To learn more about adding or creating a system property, see Add a system property.