Loaded inside knutton.uk, and same registrable domain (both under knutton.uk).
This element could be modified by a Monetate action running inside the iframe.
Cookie-domain check: for the MID to match the parent, the Monetate account's cookie
domain must be set to .knutton.uk (the shared registrable domain),
not book.knutton.uk. If the MIDs differ, confirm that setting first before concluding.