Another web site that claims I have an ad blocker, and won't let me see the article. I don't have an ad blocker, so I can't switch it off for you, and even if I could, I wouldn't.
I'm with the other guy as well, you didn't miss anything. The article is garbage. It basically says "Woah! There's a plane that flies around and no one knows what it does or where it goes! It's probably nothing but it's fun (and gets clicks to our website) to make up conspiracies! Weird, huh?!"
When this happens, I just disable all javascript on the page, and the page loads fine -- no error, no alert, just the content. In fact, the page loads faster, since 95% of Javascript is not used to improve the usability of the site.