如何检测JavaScript和/或Cookie被禁用？

Question

如何在用户的浏览器中检测到JavaScript或Cookies被禁用并通知他任何帮助？

Answer 1

要检查cookie,您可以使用:

function checkCookie(){
    var cookieEnabled = navigator.cookieEnabled;
    if (!cookieEnabled){ 
        document.cookie = "testcookie";
        cookieEnabled = document.cookie.indexOf("testcookie")!=-1;
    }
    return cookieEnabled || showCookieFail();
}

function showCookieFail(){
  // do something here
}


// within a window load,dom ready or something like that place your:
checkCookie();

并且为了检查JavaScript,使用<noscript>带有某种消息的标签

Answer 2

更新(6/25/18):

很多这些帖子,包括我的,正在从Modernizr获取片段.随着Modernizr代码的更新,它们最终都会变得过时.

我认为这个问题的最佳答案应该是直接使用Modernizr.

if (Modernizr.cookies) {
  // supported
} else {
  // not-supported
}

原答案(5/11/17):

这是直接来自Modernizr,并且在本文中比其他解决方案在更多浏览器中工作.

https://github.com/Modernizr/Modernizr/commit/33f00fbbeb12e92bf24711ea386e722cce6f60cc

function checkCookie(){
    // Quick test if browser has cookieEnabled host property
    if (navigator.cookieEnabled) return true;
    // Create cookie
    document.cookie = "cookietest=1";
    var ret = document.cookie.indexOf("cookietest=") != -1;
    // Delete cookie
    document.cookie = "cookietest=1; expires=Thu, 01-Jan-1970 00:00:01 GMT";
    return ret;
}

Answer 3

由于cookie检测在IE 11中不起作用,我建议使用Modernizr方法:

function areCookiesEnabled() {
    try {
      document.cookie = 'cookietest=1';
      var cookiesEnabled = document.cookie.indexOf('cookietest=') !== -1;
      document.cookie = 'cookietest=1; expires=Thu, 01-Jan-1970 00:00:01 GMT';
      return cookiesEnabled;
    } catch (e) {
      return false;
    }
}

https://github.com/Modernizr/Modernizr/blob/5eea7e2a213edc9e83a47b6414d0250468d83471/feature-detects/cookies.js

Answer 4

这是最简单的方法

if (navigator.cookieEnabled) {
  document.write("Cookies Enabled");
} else {
  document.write("Oops Cookies Not Enabled");
}

Check if Cookies Enabled in Your Browser:  
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