Why is Cloudfront loading scripts in my web app? (I don't use it)

Question

I manage a secured PHP/MySQL web app with extensive jQuery use. Today, a strange error popped up in our app\'s logs:

JS Error: Error loading script:
https://d15g         


        

Answer 1

I found an iFrame as well in my drupal 7 website. It was loaded into the site by enabling the module of sharaholic.