jQuery window.location.replace不断循环 [英] jQuery window.location.replace keeps looping

问题描述

如果由于我的html5布局在Internet Explorer或Firefox中使用了较旧的浏览器，则我将jQuery与window.location.replace()一起使用，以重定向到wordpres中的新页面.

I'm using window.location.replace() with jQuery to redirect to a new page in wordpres if you got a older browser in either Internet explorer or Firefox due to my html5 layout.

              var browser = jQuery.browser;
              var version = browser.version.slice(0.3);

              if ( browser.msie && version != "10.0" && version != '9.0' ) {
                    window.location.replace("http://crosscom.dk/update-browser");
              }

               if ( browser.mozilla && version != "17.0" && version != '16.0' && version != '15.0' ) {
                    window.location.replace("http://crosscom.dk/update-browser/");
              }

重定向有效，但由于它已加载到wordpres的标头中，因此每次都会循环播放，因此您正坐在:IE 8示例中.

The redirects works but since its loaded in the header in wordpres it keeps on looping everytime, you are sitting on: example IE 8.

所以我的问题在后面...

So my question is following...

如何重定向浏览器一次后，如何终止脚本或在代码周围设置不同的参数以阻止脚本循环?

How can i kill the script or setup different parameters around my code to stop the script from looping after the browser got redirected once?

推荐答案

之所以引起循环，是因为无论您在哪个页面(包括重定向目标)上都进行重定向.为了避免循环，请测试您是否已经在重定向位置.

The loop is caused because the redirection occurs no matter what page you are on, including the redirection target. To avoid a loop, test whether you are already in the redirect location.

有多种方法可以实现-最有效的方法可能是服务器端检查和重定向.但是，假设您的知识水平或部署要求意味着JavaScript替代品更好，那么您可以使用以下代码:

There are a number of ways this could be achieved - the most efficient probably being a server side check and redirection. However, on the assumption that your knowledge level or deployment requirements mean that a JavaScript alternative is better, you could use the following code:

var redirectLocation = "http://example.com/example.html"; // Redirect destination

// Page location and redirectLocation should not be the same
if (window.location.href !== redirectLocation) {
  // Redirect logic
}

将此直接应用于您自己的代码示例将产生:

Applying this directly to your own code example produces:

var browser = jQuery.browser;
var version = browser.version.slice(0.3);
var redirectLocation = "http://crosscom.dk/update-browser/"; // Redirect destination

// Page location and redirectLocation should not be the same 
if (window.location.href !== redirectLocation) { 
  // Redirect logic

  if ( browser.msie && version != "10.0" && version != '9.0' ) {
    window.location.replace(redirectLocation);
  }

  if ( browser.mozilla && version != "17.0" && version != '16.0' && version != '15.0' ) {
    window.location.replace(redirectLocation);
  }

}

这篇关于jQuery window.location.replace不断循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！