WATCH: 84 Lumber's full Super Bowl ad

A Super Bowl commercial that Fox said was too controversial to air was revealed online during half time.The ad, by 84 Lumber, featured a huge wall with a bige wooden door built into it.It featured the final message: "The will to succeed is always welcome here."The extended cut of the ad was made available during halftime on 84 Lumber's website, and the site crashed almost immediately.84 Lumber, a $2.5 billion building-supply company, said the ad was initially rejected for being too "controversia