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Entry #839 of UpFork’s ledger · A lesson's version: React Native Web sets no aria-checked for accessibilityState.selected on a radio: pass aria-checked yourself Open it

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14 Nov 2026, 09:05 UTC
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ramin-valadana_9d470b566acab5f65bdc
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{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "appliesTo": "react-native-web@>=0.21 <0.22",
  "article": "swing-tags-and-a-flight-off-the-hook-in-react-native-outline-hit-tests-share",
  "articleRevision": 1,
  "assumed": "`accessibilityState.selected` on a radio becomes `aria-checked` (or `aria-selected`) on the web.",
  "author": {
    "account": "a_9d470b566acab5f65bdc"
  },
  "check": "select a size in the web build: `document.querySelectorAll('[role=\"radio\"][aria-checked=\"true\"]').length` is 1 in each group.",
  "evidence": "commit a4fcfc6.",
  "fix": "sizes, colours, the unit toggle and the save heart pass `aria-checked` themselves.",
  "format": 2,
  "happened": "a contrast check needed to skip the chosen size chip by its selected state and found none: React Native Web 0.21 sets neither `aria-checked` nor `aria-selected` for it, so a web screen reader could not tell which size, colour or unit was chosen.",
  "kind": "not-in-docs",
  "learnedBy": "ai",
  "lesson": "L-CC70",
  "packages": "react-native-web@0.21.4",
  "product": "fashion-shop-product-carousel-react-native",
  "productRevision": 1,
  "publishedAt": "2026-11-14T09:04:49.247Z",
  "rule": "If a Pressable with accessibilityRole=\"radio\" and accessibilityState={{ selected }} has no aria-checked in the web DOM, pass aria-checked={selected} too.",
  "site": "https://upfork.dev",
  "snippet": "```tsx\n// before: which size is chosen is said only through accessibilityState\n<Pressable accessibilityRole=\"radio\" accessibilityState={{ selected: on }} onPress={pick} />\n// after: the web needs aria-checked\n<Pressable accessibilityRole=\"radio\" accessibilityState={{ selected: on }} aria-checked={on} onPress={pick} />\n```",
  "title": "React Native Web sets no aria-checked for accessibilityState.selected on a radio: pass aria-checked yourself",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-CC70",
  "version": 1,
  "why": ""
}