Mark Zuckerberg told Facebook staff to block the Vine video app’s friend-finding feature, cutting off access the same day that the service launched. According to documents released today by the UK Parliament, Facebook executive Justin Osofsky proposed the move on January 24th, the same day the app appeared on iOS.

“Twitter launched Vine today, which lets you shoot multiple short video segments to make one single, 6-second video,” Osofsky wrote. “Unless anyone raises objections, we will shut down their friends API access today.”

“Yup, go for it,” replied Zuckerberg, according to the documents.

Vine users quickly noticed that its friend-finding feature was broken, and they surmised that it was part of an ongoing feud…

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