So, I'm trying to make a game that you can change the name to my game in and it says Trust Check Failed, I'm using the api https://www.roblox.com/places/[my game id]/update and I think I need an iFrame but I don't know how to make one, any help is appreciated.
You cannot do this as you cannot use any Roblox endpoints as roblox blocks this from happening unless you are an admin. The only way around this is to use a proxy or a server to call it for you.