How can I refresh a tab from another using Javascript

Question

I'm looking to achieve something like Wordpress does when you create a new post. It allows you to preview your post by opening a new tab. If, after that, you edit the post and preview it again, rather than opening another tab, it refreshes the previously opened tab (provided it is still open).

From some research it seems I can open a new window and give it a name to identify it, like this:

window.open(url,"foobar");

But, how can I later refresh this tab? location.reload() does not seem to take a name as an argument.

Answer 1

If I remember correctly this is the way to do it:

var win = window.open(url, "foobar");
win.location.reload();