{
  "schema": "cometweb.synthetic-keyboard-lab/v1",
  "run_at_utc": "2026-09-13T11:45:49.929383+00:00",
  "dataset": "two local, deliberately authored fixtures",
  "document_delivery": "Playwright page.set_content, no HTTP requests",
  "not_assessed": [
    "live CometWeb site",
    "axe-core",
    "screen readers",
    "WCAG conformance of a page or site",
    "legal compliance",
    "other browser engines",
    "usability with disabled people"
  ],
  "python_playwright_version": "1.57.0",
  "cases": [
    {
      "variant": "before",
      "fixture_sha256": "4aa3155a93042b1309e738ad6ae32ce19af00b77b53d61ebfb7835fe9c810bd6",
      "computed_accessibility_role": "button",
      "computed_accessibility_name": "Zamów",
      "role_and_name_observed": true,
      "tab_trace": [
        "buy",
        "buy",
        "buy"
      ],
      "shift_tab_trace": [
        "buy",
        "buy",
        "buy"
      ],
      "expected_first_destination": {
        "Tab": "next",
        "Shift+Tab": "previous"
      },
      "observed_first_destination": {
        "Tab": "buy",
        "Shift+Tab": "buy"
      },
      "forward_navigation_matches_expected": false,
      "backward_navigation_matches_expected": false,
      "interpretation": "Authored Tab trap reproduced; no in-page escape is implemented."
    },
    {
      "variant": "after",
      "fixture_sha256": "d7f17fbbc2234e81bb4f78fbd2c001d694b0763306654fafdaea09c747e416cf",
      "computed_accessibility_role": "button",
      "computed_accessibility_name": "Zamów",
      "role_and_name_observed": true,
      "tab_trace": [
        "next",
        "BODY",
        "previous"
      ],
      "shift_tab_trace": [
        "previous",
        "next",
        "buy"
      ],
      "expected_first_destination": {
        "Tab": "next",
        "Shift+Tab": "previous"
      },
      "observed_first_destination": {
        "Tab": "next",
        "Shift+Tab": "previous"
      },
      "forward_navigation_matches_expected": true,
      "backward_navigation_matches_expected": true,
      "interpretation": "First forward and backward focus destinations match the fixture contract."
    }
  ],
  "browser": "144.0.7559.96"
}