(CNN) — Facebook says a bug that inadvertently accesses a user's iPhone camera while they're scrolling through the News Feed will be fixed sometime today. The bug, which was discovered by Joshua Maddux, owner of web design firm 95Visual, appears to be exclusive to iOS and does not affect Android devices. Maddux took to Twitter to report his discovery, where he posted a video that showed his camera, pointing forward, was running in the background while he was scrolling Facebook. "I thought I had opened the camera by accident," Maddux wrote in an email to CNN of the discovery. "Then,...