javascript 检测 iFrame 中的重定向
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Detect redirect in iFrame
提问by mrtsherman
I may be asking the wrong question here so I will provide a small amount of detail about what I am trying to accomplish.
我可能在这里问了错误的问题，因此我将提供有关我要完成的工作的少量细节。
I use a third party web app to track support tickets. They provide the code for a form that my users fill out and it submits to their domain. I want to use this form on two different domains, but unfortunately the third party uses a single, hard coded redirect value. This causes one of my sites to switch domains after submission.
我使用第三方网络应用程序来跟踪支持票。他们为我的用户填写并提交到他们的域的表单提供代码。我想在两个不同的域上使用此表单，但不幸的是第三方使用了单个硬编码重定向值。这会导致我的网站之一在提交后切换域。
I was thinking I could embed their form in an iFrame, detect the redirection on successful form submission and instead redirect to one of my own pages.
我想我可以将他们的表单嵌入到 iFrame 中，检测成功提交表单时的重定向，而不是重定向到我自己的页面之一。
Pseudocode:
伪代码：
iframe.detectRedirection
if (redirect == 'xyz.html') {
//do my own redirection in main window.
}
So back to my original question - how can I detect the redirection in the iframe?
所以回到我原来的问题 - 我如何检测 iframe 中的重定向？
回答by Ed Fryed
You could try
你可以试试
$("iframe").load(function(){
//The iframe has loaded or reloaded.
});
to detect the frame loading and refreshing
检测帧加载和刷新
and if the redirect happens on the second load
如果重定向发生在第二次加载
//var to count times iframe has loaded
var timesRefreshed = 0;
//detect iframe loading/refreshing
$("iframe").load(function(){
//if second refresh, change frame src - ie dont count first load
if(timesRefreshed == 1){
$(this).attr("src","my site url here");
}
//add to times resreshed counter
timesRefreshed++;
});
if there are more stages just change the x to the amount of stages
如果有更多阶段，只需将 x 更改为阶段数
if(timesRefreshed == x)
this isnt full proof. ie if could break if the other site adds a stage etc but its the best i can think of if you dont have any control over the other site.
这不是充分的证据。即，如果其他站点添加舞台等可能会中断，但如果您对其他站点没有任何控制权，那么它是我能想到的最好的方法。
