Keyboard disabled after verifying captcha

[Mysame]

Using Internet Explorer 11.0.36 I have a single-page AngularJS application. Whenever I open the vcRecaptcha, and verify it, I have a 50% chance keyboard input gets disabled to all other elements. I have not found a way to properly duplicate this issue, and was wondering if anyone has experienced the same behavior. I have not had this happen on other sites using ReCaptcha (albeit different implementations, thus not vcRecaptcha).

[gfragioud]

When iframe of captcha is destroyed, IE loses the focus at all. That's why you can't type to the main page. So, focus must return to the main page before the iframe is destroyed.

More info here...