Checkpoint 2.10 : Don't render text in unsupported writing systems
For graphical user agents, allow configuration not to render text in unsupported scripts (i.e., writing systems) when that text would otherwise be rendered.
When configured per provision one of this checkpoint, indicate to the user in context that author-supplied content has not been rendered due to lack of support for a writing system.
Normative inclusions and exclusions
This checkpoint does not require the user agent to allow different configurations for different writing systems.