SharePoint 2013 - Access denied error message when accessing anonymous permission list using client side object model or javascript

We had a list having anonymous access but after migrating from 2010 to 2013 we started getting error.
The anonymous permission was there but still getting error.

After searching I found a blog and it helped me in solving this.

This is what I did in my case:
1. Go to site collection
2. Site Seettings > Site Permission
3. Click on "Anonymous Access" in ribbon menu
4. Uncheck "Require Use Remote Interfaces permission"

And it again started working...  :)

Thanks for reading this and I hope someone will be benefited.