Visibility audience
Overview
Section titled “Overview”This guide exercises the closed-dialect :::visibility audience gate end-to-end.
Web readers see this line: W4B1_WEB_CANARY_PROSE_ONLY.
Invalid attributes stay inert rather than gaining audience semantics: W4B1_INVALID_ATTR_CANARY.
The gate below is deliberately written in its other authored form — a [label]
and a leading space. remark resolves both, so every machine surface must too;
a stricter scanner here is exactly how a gated body reaches the .md mirror
while the browser shows nothing.
Shared prose after the gates remains on every surface.
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