ezsyblog post, facebook like on mobile safari issue.

Hello team,

i noticed that when reviewing my post on iphone 6s, with safari browser.
for example this one: https://www.incgmedia.com/index.php/gaming/ar

i tried to push "like" button, but once i click it, it will open another page with "OK" button on it.(attach image 1)
and after i click the OK button, it will go back to the post, but the like number did not add up.

but i tried using google chrome, there will be no such issue.

so i was wondering what might cause this issue? Safari or easyblog?
do you have any experiences on that?
or what i should look into?

Thanks.