Iframe高度自适应

1. 同域iframe高度自适应

setSameDomainIframeHeight: function (ifmId) {
        var ifm = document.getElementById(ifmId);
        var ifmHeight = ifm.contentDocument.body.scrollHeight;
        ifm.height = ifmHeight;
}

2. 跨域iframe高度自适应

setCrossDomainIfrmHeight: function (ifmId) {
    var myEventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
    var myEventListener = window[myEventMethod];
    var myEventMessage = myEventMethod == "attachEvent" ? "onmessage" : "message";
    //----接收消息
    myEventListener(myEventMessage, function (e) {
        debugger;
        console.log("e=", e);
        if (e.data === parseInt(e.data))
            document.getElementById(ifmId).height = e.data + "px";
    }, false);
    //----iframe加载完毕向父窗体发送消息
    document.getElementById(ifmId).onload = function () {
        console.log("window.parent", window.parent);
        window.postMessage(document.body.scrollHeight, "*");
        /*  window.parent.postMessage(document.body.scrollHeight, "*");*/
    };
}