Grid cards with a public source are wrapped in an <a>; the sound/play button
lives inside it, so a click — mouse or keyboard — bubbled up and navigated to
GitHub instead of toggling sound. preventDefault + stopPropagation on the control.
Found by driving the live preview (self-review).
- replica-compare: the offscreen teardown now resets muted (element + React state),
matching HoverVideo — a pair unmuted before it scrolled away no longer returns
reading 'Sound on' over a paused, sourceless pair (Magi blocker).
- Both controls' aria-labels now follow the mode: under reduced motion the button
plays/pauses the whole comparison, and when a preview is already autoplaying
muted the action is 'unmute', not 'play with sound' (self-review + Rames).
- Hardened the motion-suite assertion to scope 'startBoth' to toggleSound's body
(a defined-but-unused helper no longer satisfies it) and pin the offscreen
muted-reset transition (Rames mutation-test gap).
- html-schema: 'hyperframes validate' inspects <audio> only; note that no
media-start-only reader inspects a composition host, so the kind rule strands
nobody (Rames).
Both snippet players now keep a source assigned whenever in view (preload='none'
so nothing downloads until asked), gating only autoplay on reduced motion — so a
reduced-motion visitor can press play/unmute instead of being left with an inert
poster. HoverVideo renders a control on hasAudio={false} cards too (a play/pause
toggle), and ReplicaCompare no longer calls play() on a source it just removed.
Gave ReplicaCompare's button the same aria-pressed + focus-visible as HoverVideo.
Round-2 finding from Magi (#1) and Rames.
HoverVideo now: (1) exposes a focusable button that toggles/plays sound by
keyboard, touch and pointer — hover is an enhancement, not the only path;
(2) gates the source behind an IntersectionObserver so offscreen cards no longer
download/decode, releasing the buffer on exit; (3) still blocks autoplay under
reduced motion while allowing voluntary playback via the button. Routed all 30
Thirty-Days cards through it (hasAudio={false} for the 12 silent ones) so no raw
<video autoPlay> bypasses the motion guard. Flagged by Magi (P1 #4/#5/#6).
Adds a HoverVideo snippet (autoplay muted, unmute + play on hover, re-mute on
leave) and points the 18 days whose source has real audio at new -s.mp4 keys
re-encoded with sound (CDN is immutable, so new keys not overwrites). The other
12 days have genuinely silent sources and stay muted. Honours prefers-reduced-motion.
ukimsanov