Extension ID Leak/Suspicious Checker

HTML

<h1>Extension ID Checker - Go to chrome://extensions/ , ctrl+a , ctrl+c (select all and copy)</h1>

<div id="input-area">
  <label for="input">Paste your extension list here:</label><br>
  <textarea id="input" placeholder="Paste the text containing 'ID: ' lines..."></textarea>
</div>

<div id="result-container">
  <div class="panel" id="extensions-panel">
    <h2>All Found Extensions</h2>
    <div id="extensions-list"></div>
  </div>

  <div class="panel" id="matches-panel">
    <h2>Leaking / Suspicious Matches</h2>
    <div id="matches-list"></div>
  </div>
</div>

CSS

body {
      font-family: system-ui, sans-serif;
      margin: 0;
      padding: 12px;
      background: #f8f9fa;
      color: #111;
    }
    h1 {
      margin-top: 0;
      font-size: 1.4rem;
    }
    #input-area {
      margin-bottom: 16px;
    }
    textarea {
      width: 100%;
      height: 260px;
      font-family: 'Consolas', 'Monaco', monospace;
      font-size: 13px;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 6px;
      resize: vertical;
    }
    #result-container {
      display: flex;
      gap: 16px;
      min-height: 320px;
    }
    .panel {
      flex: 1;
      border: 1px solid #ddd;
      border-radius: 6px;
      background: white;
      padding: 12px;
      overflow-y: auto;
    }
    .panel h2 {
      margin-top: 0;
      font-size: 1.1rem;
      border-bottom: 1px solid #eee;
      padding-bottom: 6px;
    }
    .extension {
      margin: 10px 0;
      padding: 8px;
      background: #f0f7ff;
      border-radius: 6px;
      font-family: monospace;
    }
    .id-only {
      background: #fff3e0;
    }
    .match-leak {
      background: #ffebee;
      border-left: 4px solid #d32f2f;
      padding-left: 10px;
    }
    .match-suspicious {
      background: #fff3e0;
      border-left: 4px solid #f57c00;
      padding-left: 10px;
    }
    .match-both {
      background: linear-gradient(to right, #ffebee 50%, #fff3e0 50%);
      border-left: 4px solid #c2185b;
    }
    .no-match {
      color: #555;
    }

JavaScript

// === Static lists – edit here if needed =====================================
const leaking = new...