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Warn/Prevent Back button for Synology DSM

Warns user before going back when browsing on your Synology DSM NAS

目前為 2025-05-30 提交的版本，檢視 最新版本。

// ==UserScript==
// @name      Warn/Prevent Back button for Synology DSM
// @version   1
// @grant     none
// @license   MIT 
// @match https://192.168.1.106:5001/
// @description Warns user before going back when browsing on your Synology DSM NAS
// @namespace https://greasyfork.org/users/1476593
// ==/UserScript==

window.addEventListener('popstate', function() {
  window.onbeforeunload = function() {
    return 'Are you sure you want to leave?';
  };
});

// To trigger the popstate event manually
history.pushState(null, null, location.href);