IE gets focus on iframe location change

Question

There is a third-party page with my iframe. I want to open a new window from iframe then change iframe location to other and focus to new window.

user_clicks = function() {
    newwindow = window.open(new_window_url, "_blank");
    newwindow.focus();
    location.href = iframe_url;
}

It works in all browsers but not in IE. It returns focus back to page with iframe, when iframe location is changed.

Answer 1

Found the solution myself Placed blur on the second iframe url

setTimeout(function() {
    parent.blur();
}, 1000);

Worked with setTimeout only, because without - it only blinks at one moment and returned back to page with iframe.