javascript - 未捕获的语法错误 : Failed to execute 'postMessage' on 'Window' : Invalid target origin 'my_page' in a call to 'postMessage'

Question

我有以下脚本

父页面(pair_pixel_filter.php):

 window.addEventListener("message", function(e) {
            $('#log').append("Received message: " + (e.data));
        }, false);
 $('.photo-upload-btn').click(function(event) {
            event.preventDefault();
            window.open($(this).attr("href"), "popupWindow", "width=600,height=600,scrollbars=yes");
        });

子页面

$.ajax({
            type: 'post',
            url: url,
            data: {
                base64data: dataURL
            },
            success: function(data) {
                window.opener.postMessage(data, "pair_pixel_filter.php");
                window.close(); }
        });

基本上是打开一个弹出窗口，然后在弹出窗口上执行一些 ajax 并将结果返回给父窗口。但是从 Child 我收到了这个错误。

Uncaught SyntaxError: Failed to execute 'postMessage' on 'Window': Invalid target origin 'pair_pixel_filter.php' in a call to 'postMessage'

Answer 1

postMessage 的第二个参数是“目标来源”。这是页面所在的域，而不是 (php) 文件的名称。

它需要是这样的:

window.opener.postMessage(data, "http://example.com");

参见:https://developer.mozilla.org/en-US/docs/Web/API/Window.postMessage