How can I display Chat Plugin in IE 9 without using Developer Tool?

The Chat Plugin is not being displayed in IE9 using without Developer Tool. If I open Developer Tool and refresh the page, it shows up.
I tested it through Browserstack.

Someone posted the same issue here:

And Paul created a site:

I checked that site out and didn't show up in IE9 until you open Developer Tool and refresh the page.

I've the most recent WordPress (3.9.1) installed and Chat Plugin ( as well. I've changed the theme. Still no changes.
And there are no JS errors in console.