问题描述
我有这个JS代码：
window.open(loginurl, '_blank');
来自某个条件，例如：
if (userloggedin) {
//popup another page
} else {
window.open(loginurl, '_blank');
}
loginurl是我想要的登录网址在新窗口中打开。
"loginurl" is an login URL that I would like to open in new window.
问题：这将在大多数浏览器（Firefox和Chrome）中被阻止，因为它的行为类似于弹出窗口。
Problem: This will be blocked in most browsers (Firefox and Chrome) because it behaves like a popup.
我想要一个仍然利用我的登录URL变量的解决方案（不改变if else语句），在新窗口中打开它，不会有任何被阻止弹出窗口的警告。
I would like a solution that will still utilizes my login URL variable (not altering the if else statement), open it in new window without any warnings of a popup that is being blocked.
我正在寻找方法，但我从来没有找到解决方案。如果有人可以提供一些提示或见解。非常感谢。
I am searching for ways but I never found a solution. If somebody can provide some tips or insights. That would be highly appreciated.
谢谢。
推荐答案
窗口由打开window.open 将始终被视为弹出窗口，当触发该功能而没有用户操作启动它时，浏览器会阻止它。
The window opened by window.open will always be regarded as a pop-up to block by browsers when the function is triggered without a user action initiating it.
这意味着，例如，这些不会被阻止：
That means that for example that these will not be blocked:
$('a').on('click.open', function(e) { e.preventDefault(); window.open('http://disney.com') });
Chrome甚至允许其他事件触发弹出窗口，而firefox不允许这样做：
Chrome even allows other events to trigger the popup, while firefox will not allow this:
$(document).on('keydown', function(e) { window.open('http://stackexchange.com') });
这将被阻止：
$(document).ready(function() { window.open('http://stackoverflow.com') });
所以，除非你触发 window.open 用户操作后，您永远无法确定您的窗口是否会被阻止。
So, unless you're triggering the window.open after a user action, you can never be sure that your window won't be blocked.
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