when the user clicks set filter this appears:
Step:
1 https://en.wikipedia.org/wiki/Special:NewPagesFeed
2 click on set Filter button
3 click anywhere outside the set filter window
So when the user clicks anywhere outside the overlay window the setfilter window still stays intact.
what should actually happen: When a user clicks on any area outside the overlay, the overlay should save and then be dismissed.
I have seen this happening on many websites