I'm trying to open a new Window, not a new tab.
I see the Thread back in 2012. That suggested the new window name must be blank.
No good to me. I want to open a 'help' window giving information.
This code, both the link and the button, works in Safari, but not in FF, IE, Opera or Chrome.

Can you advise me what I'm doing wrong.

<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml' lang='en-US'>
<script language='javascript' type='text/javascript'>
var props = "top=100, left=100, width=200, height=200";
var newWndo = window.open ( "", "info", props );
function openWndo () { newWndo; }
window.open ( "", "info", "top=100, left=100,
width=200, height=200, location=yes, status=yes" );>
<a href="info.html" target="infoWndo">info.html</a>
<button type="button" name="infoButn"
onclick="JavaScript: window.open ( );" >HELP</button>