iframe跨域消息传递与jQuery postMessage插件 [英] iframe cross domain messaging with jQuery postMessage plugin

问题描述

我尝试使用以下插件在子项iframe及其父项之间进行通信：

I am trying to communicate between a child iframe and its parent using the following plugin:

http://benalman.com/projects/jquery-postmessage-plugin/

我可以按照范例和文章

父项上的代码如下：

var origin = document.location.protocol + '//' + document.location.host,
    src = origin + '/Custom/Ui/Baseline/html/iframe-data-cash.htm#' + encodeURIComponent(document.location.href);

$(function () {

    var $holder = $('#iframe'),
        height,
        $iframe = $('<iframe src="' + src + '" id="data-cash-iframe" width="100%" scrolling="no" allowtransparency="true" seamless="seamless" frameborder="0" marginheight="0" marginwidth="0"></iframe>');

    // append iframe to DOM
    $holder.append($iframe);

});

$(window).load(function () {
    $.postMessage(
        'hello world',
        src,
        parent.document.getElementById('data-cash-iframe').contentWindow
    );
});

子代码如下：

$(function () {

    var parentURL = decodeURIComponent(document.location.hash.replace(/^#/, ''));

    $.receiveMessage(
        function (e) {
            alert(e.data);
        },
        parentURL
    );

});

我真的看不出为什么这不工作，急需帮助！

I really cannot see why this is not working and am in desperate need of help!

推荐答案

从来没有使用过这个插件，不能真正说它有什么问题，但是，或者你可以使用HTML 5 postMessage。

Never used that plugin, can't really say what's wrong with it, but, alternately you can use HTML 5 postMessage.

由于您要向iframe发送数据，请在其上注册一个事件监听器：

Since you want to send data to the iframe, register an event listener on it:

window.addEventListener('message', receiver, false);

function receiver(e) {
   if (e.origin == '*') {
     return;
   } else {
     console.log(e.data);
   }
}

请务必检查您的信任网域

Be sure to check origin against your trusted domain to prevent damage, instead of "*" which will accept all.

现在您可以致电

message = "data";
iframe = document.getElementById('iframe');  
iframe.contentWindow.postMessage(message, '*');    

同样，您应该使用目标网域更改*。

Again, you should change "*" with the destination domain.

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