For a few minutes this evening, Facebook was redirecting users visiting dozens of websites to cryptic error pages.

The reaction online was pretty much what you'd expect, with — as the The Next Web noted — hashtags like "Facebookmageddon" and "Facebocalypse" common amongst Twitter users.

So what happened, exactly? There was an issue with the Facebook Connect API that caused users on sites that use that API to redirect users to Facebook error page.

If you were visiting any site that integrated Facbook Connect for user authentication API and logged into that site using your Facebook account (and you were also signed into Facebook), you were automatically redirected to a page that looked like this:

Exiting the page or attempting to re-access the original site would lead to another redirect. Back to this:
Sites such as The Huffington Post, Kayak, Hulu, The Daily Dot, Pinterest and hundreds of others were all impacted. The bug lasted less than 10 minutes.

In a statement, Facebook told: "For a short period of time, there was a bug that redirected people logging in with Facebook from third party sites. The issue was quickly resolved and Login with Facebook is now working as usual."

The bug may have been brief, but it has highlighted just how many important websites use Facebook Connect for user authentication. Over the span of just a few years, Facebook logins have become so pervasive that they are nearly second nature. It also shows that if Facebook has an issue, it can affect more than just its site — it can also impact the hundreds of thousands (millions?) of sites that integrate with Facebook's APIs.

What's interesting is that a user didn't even need to be performing the action for the error — and hijacking — to occur. Instead, simply being logged into both places (and having the accounts linked) was enough to force users off of a third-party website and onto Facebook's error page.
Facebook, as everyone knows, is on a rise globally. Currently sitting at number two on web traffic rankings according to, Facebook has over 955 million users and that number increases everyday!

Last year Facebook surpassed Google for the top ranking for total time spent online.

We all use Facebook on our computers, phones, iPads and every other electronic device that connects to the internet. We see pictures, videos, statuses all being updated in a fraction of a second of each other. Ever wondered what goes on on Facebook in a span of 20 minutes? Doesn’t seem too long, right? Read on and you’ll be surprised!