anchor.diff:  
       a { color: #980905; }
       a:visited { color: #666; }
  -    a.trace-frames { color: #666; }
  +    a.trace-frames {
  +      color: #666;
  +      overflow-wrap: break-word;
  +    }
       a:hover { color: #C52F24; }
       a.trace-frames.selected { color: #C52F24 }
   
  
positive.code:     }
  
      h1 {
        margin: 0.2em 0;
        line-height: 1.1em;
        font-size: 2em;
  
negative.code: <html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Action Controller: Exception caught</title>
    <style>
      body {
  