Here is my CartoDB map: https://tekim.cartodb.com/viz/1f42eaae-cad0-11e5-8e5c-0ecfd53eb7d3/public_map
I have enabled (Options -> Scroll Wheel Zoom). Once I do this, I am able to use the scroll wheel to zoom as long as I am logged into CartoDB. However, the people with whom I am sharing the map cannot use the scroll wheel to zoom, and if I am logged out, I can't either. I am using Chrome and I have tested in IE 11 and both exhibit this issue. What might be causing this issue?