Added a support comment, and updated spacing

As discussed in #1597.
Sorry if I was confused earlier, @markelog. I just removed the unit test. Would you be down to add yours, in another PR perhaps?

> No (just like the tests in this PR), but if it was IE<8 it would be

The ticket seems to mention IE8 three times. That being said, the author could have been in compatibility mode. I'll update the comment too.