How to avoid warning in IE9 when pasting Google Plus code?

Question

Internet Explorer

Good afternoon.

I paste the snippet using the Google Plus script:

<script type="text/javascript" src="https://s7.addthis.com/js/250/addthis_widget.js#async=1"></script><br>

But in the console I get this warning:

HTML1115: X-UA-Compatible META tag ('IE=9, IE=8, chrome=1') ignored because document mode is already finalized.<br/>

When I remove the Google Plus display line, the warning disappears:

<a class="addthis_button_google_plusone" g:plusone:size="medium"></a><br>

Browser: IE9, Document mode: IE9.
According to the given link , they say that the tag:

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" /><br>

if present, it should be inserted immediately after the head tag. But I don't include this tag. I can assume that Google Plus inserts it in its iframe, but I can’t find it in the code.

Who faced and knows how to overcome this trouble?

Answer 1

To be honest, I'm afraid that the only thing you can try here is to insert this meta tag yourself.
/>
It seems to be like this.