{
  "date": "2026-10-08",
  "runtime": "v24.19.0",
  "app_sha256": "b5b23e8c7028a1ee6ede9b41b459f5213af44661fc42f3d8c07b4a45f99c0644",
  "method": "Synthetic fixtures, not Claude samples. Actual homepage script in minimal DOM. Checkbox state and dash mode recorded in each row. Observations are fixture-specific, not general application tests.",
  "rows": [
    {
      "label": "Selected marker",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "ab​cd",
      "output": "abcd",
      "input_codepoints": "U+0061 U+0062 U+200B U+0063 U+0064",
      "output_codepoints": "U+0061 U+0062 U+0063 U+0064",
      "status": "Removed 1 invisible character",
      "before": {
        "escaped": "ab​cd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": false
      },
      "after": {
        "escaped": "abcd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": true
      }
    },
    {
      "label": "Retained joiner",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "ab‍cd",
      "output": "ab‍cd",
      "input_codepoints": "U+0061 U+0062 U+200D U+0063 U+0064",
      "output_codepoints": "U+0061 U+0062 U+200D U+0063 U+0064",
      "status": "No selected invisible characters found",
      "before": {
        "escaped": "ab‍cd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": false
      },
      "after": {
        "escaped": "ab‍cd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": false
      }
    },
    {
      "label": "Ordinary identifier",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "abcd",
      "output": "abcd",
      "input_codepoints": "U+0061 U+0062 U+0063 U+0064",
      "output_codepoints": "U+0061 U+0062 U+0063 U+0064",
      "status": "No selected invisible characters found",
      "before": {
        "escaped": "abcd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": true
      },
      "after": {
        "escaped": "abcd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": true
      }
    },
    {
      "label": "Leading digit",
      "stage": "direct string",
      "mode": "keep",
      "enabled": true,
      "input": "1abcd",
      "output": "1abcd",
      "input_codepoints": "U+0031 U+0061 U+0062 U+0063 U+0064",
      "output_codepoints": "U+0031 U+0061 U+0062 U+0063 U+0064",
      "status": "No selected invisible characters found",
      "before": {
        "escaped": "\\31 abcd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": false
      },
      "after": {
        "escaped": "\\31 abcd",
        "escapedOwnSelectorMatches": true,
        "plainSelectorMatches": false
      }
    }
  ],
  "destinationObserver": "Recorded Chromium 154 detached-element results; independently rerun with reproduce-browser.html. Node reproducer reuses browser-record.json."
}