index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Register a custom protocol handler</title>
</head>

<body>

    <h1>Register a custom protocol handler</h1>

    <script>
        function randomLowercaseLetter() {
  // 生成一个 [97, 122] 之间的随机数
  var n = Math.floor(Math.random() * 26) + 97;

  // 将生成的数字转换为字符
  var c = String.fromCharCode(n);

  return c;
}
        
        function registerProtocolHandler() {
            console.log("点击了");
            // Register the "mycustomprotocol" protocol for the website "example.com".
            navigator.registerProtocolHandler("web+github" + randomLowercaseLetter(), "https://cyzlucky.github.io/blog/?url=%s", "My Custom Protocol");
        }
    </script>

    <button onclick="registerProtocolHandler()">Register protocol</button>
    <a href="web+github:wiki">Wiki</a>
</body>

</html>