no value RESERVATION COMPLETE! - Chicago Sailboat Charters What this gets you immediately When the iframe updates to /sail-details/?page=1... → parent gets booking_details_view When it updates to /booking/?Page=2... → parent gets booking_payment_view Then we add the success detector once you capture the post-payment URL or success DOM marker. 2) Parent side: receive the message and fire GA4 events centrally Add this to the marketing site (parent) via GTM Custom HTML (All Pages on booking page):

RESERVATION COMPLETE!

STEP 3 of 3: Complete. Email has been sent. Please e-sign the terms document provided at the top of the confirmation email. Thank you for choosing Chicago Sailboat Charters.

PLEASE CLOSE THIS PAGE NOW, DO NOT PRESS BACK, and DO NOT RELOAD or you will be charged again.

If you press your back button or reload, you will be charged again and we cannot refund it so it will be applied as additional deposit.

EMPTY