[Plugin: WP Super Cache] Delete Cache button on Admin bar is not working

When I click on Cache button on Admin bar, it is not clearing cache for that page.

When I investigated, I come to know below thing.

When I see regenerate list, I can see all links with postfix by “/”.

For ex.

For this page : http://news.worldsnap.com/headlines/states/karnataka/bangalore

link in cache list shows as http://news.worldsnap.com/headlines/states/karnataka/bangalore/

So, when I try to delete cache button it calls this url.

http://news.worldsnap.com/wp-admin/options-general.php?page=wpsupercache&action=delete&path=%2Fheadlines%2Fstates%2Fkarnataka%2Fbangalore&_wpnonce=f1950074e4

and above url doesn’t work.

When I tried below link then it works.

http://news.worldsnap.com/wp-admin/options-general.php?page=wpsupercache&action=delete&path=%2Fheadlines%2Fstates%2Fkarnataka%2Fbangalore%2F&_wpnonce=f1950074e4

How can fix this trailing slash issue?

I don’t want to access both page by bot.
1) http://news.worldsnap.com/headlines/states/karnataka/bangalore
2) http://news.worldsnap.com/headlines/states/karnataka/bangalore/

I want page as first option but request on second option should redirect to 1 option.

Please help me to fix this issue.

http://wordpress.org/extend/plugins/wp-super-cache/