Weird issue when you scroll in a page with a map on it.

[xavijam]

If you use Internet Explorer 6, IE7 or IE8 and scroll the page, the hover interaction has a really weird behavior. You can check this problem below:

It doesn't only appear in your website, I've tested it in a local repository and it happens as well.
Probably the UTFGrid is broken?. I've found this issue in Leaflet, not sure if it is present in other libraries.
Hope it helps.

[xavijam]

Changing line 3115 to 3127 for just:

        } else if (e.clientX || e.clientY) {
            // Internet Explorer
            return {
                x: e.clientX,
                y: e.clientY
            };
        }

Does the trick for old Internet Explorer browsers. Cheers!

[xavijam]

Checked that is happening in the google maps library as well.