VideoLoader - BitmapData.draw - SecurityError: Error #2123 in Loading (Flash) Posted February 8, 2014 Thanks for your response. Turns out it is very buggy and inconsistent. I can draw from the video during first play, but if it pauses, stops or basically anything happens then it stops allowing me to draw. Then once the video is cached in the browser it actually allows it. My solution for now is putting both the swf and videos on the same domain and in my test environment just populating the bitmapdata with transparent pixels so nothing breaks. Using a try, catch for when the security error fires on draw. Not a real solution to the problem but means I can get on with my work and use my test environment!