{
  "id": "F85",
  "rulePrefix": "F85",
  "variant": null,
  "ruleType": "w3c-failure",
  "scanScope": "specimen",
  "synthetic": false,
  "status": "current",
  "title": "Failure of Success Criterion 2.4.3 due to using dialogs or menus that are not adjacent to their trigger control in the sequential navigation order",
  "summary": "using dialogs or menus that are not adjacent to their trigger control in the sequential navigation order",
  "whyItFails": "This page reproduces the F85 failure pattern so auditors can verify detection against 2.4.3.",
  "principles": [
    "operable"
  ],
  "guidelines": [
    "2.4"
  ],
  "successCriteria": [
    {
      "id": "2.4.3",
      "name": "Focus Order",
      "level": "A",
      "slug": "focus-order"
    }
  ],
  "versions": [
    "2.0",
    "2.1",
    "2.2"
  ],
  "automatable": "partial",
  "requires": [
    "html",
    "css",
    "js",
    "input"
  ],
  "isolated": true,
  "pairWith": [],
  "w3c": {
    "understanding": [
      "https://www.w3.org/WAI/WCAG22/Understanding/focus-order"
    ],
    "quickref": [
      "https://www.w3.org/WAI/WCAG22/quickref/#focus-order"
    ],
    "technique": "https://www.w3.org/WAI/WCAG22/Techniques/failures/F85"
  },
  "specimen": {
    "html": "<button type=\"button\" id=\"f85-menu-btn\" aria-haspopup=\"true\">Open menu</button>\n<p>Other page content between trigger and menu.</p>\n<input type=\"text\" name=\"filter\" aria-label=\"Filter\">\n<ul id=\"f85-menu\" class=\"f85-menu\" role=\"menu\" hidden>\n  <li role=\"menuitem\"><button type=\"button\">Copy</button></li>\n  <li role=\"menuitem\"><button type=\"button\">Paste</button></li>\n</ul>",
    "css": ".f85-menu { list-style: none; padding: 0; margin: 0; border: 1px solid #999; max-width: 160px; }",
    "js": "document.getElementById('f85-menu-btn')?.addEventListener('click', () => {\n  document.getElementById('f85-menu')?.toggleAttribute('hidden');\n});",
    "assets": [],
    "demoHint": "Open the menu, then Tab — the menu is not adjacent to its trigger in sequential focus order.",
    "demoAction": "document.getElementById('f85-menu-btn')?.click();"
  },
  "expectedFindings": [
    {
      "sc": "2.4.3",
      "outcome": "fail",
      "note": "Specimen demonstrates failure of 2.4.3."
    }
  ],
  "mustNotFlag": [],
  "manualCheck": "Confirm the specimen demonstrates the documented F85 failure in isolation.",
  "generated": {
    "url": "https://wcagfail.patternd.io/specimens/F85/",
    "lastmod": "2026-10-08"
  }
}