I'm running a WebGL build that plays videos and i get this warning error popping up in the console every time. It doesnt make a difference for Firefox and Chrome but for Safari the warning message repeats infinitely until it says it can display no more errors. This is what i think is causing my Safari build to run much slower. So my questions are: 1.What does this warning mean? 2.How can I fix it? 3.Is it the reason my Safari build is running so slowly compare to the Firefox and Chrome builds?