A “click-to-cancel” rule, which would have required businesses to make it easy for consumers to cancel unwanted subscriptions and memberships, has been blocked by a federal appeals court just days before it was set to go into effect.The Federal Trade Commission’s proposed changes, adopted in October, required businesses to obtain a customer’s consent before charging for memberships, auto-renewals and programs linked to free trial offers.The FTC said at the time that businesses must also disclose...