For delivery service, it's typically done with a closed box so you get exactly what has been prepared.

Here you told them to unpack the food and repack it (TLS termination), filtering order (WAF), reheating pre-made food (cache) and they offer service to even prepare food or part of the food (edge compute). When your food is not available they will serve their own (error pages), with their brand visible. At that level of service, it's not so surprising to have extra stuff included.

If you are vegan and care about your customers (conservative on data collection and JS), maybe you should use a vegan architecture and not give your last-mile to the cheapest (free-tier) all-purpose repacking kitchen and delivery service.