如何在 safari 中发送跨域邮件? [英] how to send cross domain post message in safari?

问题描述

根据 canIuse Safari 9 支持跨域 postMessage 但是当我尝试将消息发送到不同的域我有关于来源的异常.

According to canIuse Safari 9 support Cross domain postMessage but when I try to send message to different domain I've got exception about origin.

我有这样的代码:

var input = document.getElementsByTagName('input')[0];
// this line throw exception
var win = document.getElementsByTagName('iframe')[0].contentWindow;
a.onclick = function() {
    var obj = {message: input.value};
    sysend.broadcast('foo', obj);
    // proxy to send message to other domains using hidden iframe
    win.postMessage(JSON.stringify({key: 'foo', data: obj}), "*");
};

显示此错误的页面是http://jcubic.pl/sysend.php

推荐答案

Safari 第一次访问 contentWindow 时似乎抛出了异常，第二次之后就正常了:

It seems that Safari throw exception when accessing contentWindow first time, it work after second time:

var iframe = document.getElementsByTagName('iframe')[0];
var win;
try {
    win = iframe.contentWindow;
} catch(e) {
    win = iframe.contentWindow;
}

这篇关于如何在 safari 中发送跨域邮件?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！