HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>ajaxError filter URL</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 560px; }
    button { margin-right: 8px; padding: 8px 12px; cursor: pointer; border-radius: 6px; border: 1px solid #cbd5e1; background: #fff; }
    .log { margin-top: 14px; padding: 12px; background: #fef2f2; border-radius: 6px; font-size: 14px; line-height: 1.5; color: #991b1b; }
  </style>
</head>
<body>
  <button type="button" id="match">404 on posts/99999 (filtered)</button>
  <button type="button" id="other">404 on users/99999 (ignored)</button>
  <div class="log">Trigger a failing request to see filtered output.</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    var targetUrl = "https://jsonplaceholder.typicode.com/posts/99999";

    $(document).on("ajaxError", function(event, jqxhr, settings, thrownError) {
      if (settings.url === targetUrl) {
        $(".log").text(
          "Triggered ajaxError handler for " + settings.url +
          " — status " + jqxhr.status + ", " + thrownError
        );
      }
    });

    $("#match").on("click", function() {
      $.get(targetUrl);
    });

    $("#other").on("click", function() {
      $.get("https://jsonplaceholder.typicode.com/users/99999");
    });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

jQuery ajaxError — filter by settings.url (Try It)