本文介绍了window.open()在第二次调用时返回undefined或null的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下情况:
我点击一个链接:
打开一个名为'popup'的弹出窗口,在其中加载一个pdf(在IE6)。
I click a link which:opens a popup window called 'popup' which loads a pdf inside of it (in IE6).
没有关闭弹出窗口,我再次点击链接,这应该重新打开弹出窗口中的pdf,而是抛出javascript错误:
未找到成员
without closing the popup, i click the link again, which should reopen the pdf inside the popup, but instead a javascript error in thrown:member not found
用于打开弹出窗口的javascript函数是:
the javascript function used to open the popup is:
function openWindow(url, name, props) {
var windowRef = window.open(url, name, props);
if (!windowRef.opener) {
windowRef.opener = self;
}
windowRef.focus(); //error at this line, windowRef must be null
return windowRef;
}
问题:
如何解决这个问题,而不打开每次都有新的弹出窗口?
question:how do i get around this, without opening a new popup window every time?
推荐答案
这是互联网上每个人都在使用的黑客行为:
this is the hack that works that everyone on the internets is using:
function openWindow(url, name, props) {
if(/*@cc_on!@*/false){ //do this only in IE
var windowRef = window.open("", name, props);
windowRef.close();
}
var windowRef = window.open(url, name, props);
if (!windowRef.opener) {
windowRef.opener = self;
}
windowRef.focus();
return windowRef;
}
这篇关于window.open()在第二次调用时返回undefined或null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!