History of WebGLRenderingContext.getShaderPrecisionFormat() Revision history for: English (US) Aug 24, 2016, 5:45:00 AM Kkiro Previous Apr 6, 2016, 3:39:59 AM fscholz technical review, this returns null if an error occurs, see WebGL spec. Previous Apr 5, 2016, 7:44:19 AM Strilanc Added missing error conditions. MSDN says that the result on error is undefined, though I think I've seen it be null.. probably safer to be conservative. Sep 30, 2015, 6:37:33 AM fscholz new page; implementation bug 708207