Upload media / Select files button not working (Wordpress / Ubuntu 14.04)
I am having a hard time understanding why is the "select files" on media uploads view not working on a couple of my wordpress (version : 4.7.3 ) sites hosted on my Ubuntu 14.04 droplet. It seems that the issue is only with Chrome though. Whenever I click on "select files" button in Media>Library>Add New, the pop up window doesn't appear.
I have already tested changing the themes, and I also verified that its not a wordpress update bug, since I have another wordpress site hosted in the same droplet, same wordpress version and that one is working fine.
It seems weird to me that the issue is only present in Chrome, makes me think some file permissions/security issue ? I honestly have no idea
I really need your help with this. Whoever is having the same issue please let me know