CONSOLE MESSAGE: line 1: WebGL: INVALID_ENUM: getActiveUniforms: invalid parameter name Checks for proper getActiveUniforms() behavior on a simple WebGL 2 program. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS gl.getError() is gl.NO_ERROR PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_TYPE) is [gl.FLOAT_MAT4] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_SIZE) is [1] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_BLOCK_INDEX) is [-1] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_OFFSET) is [-1] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_ARRAY_STRIDE) is [-1] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_MATRIX_STRIDE) is [-1] PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_IS_ROW_MAJOR) is [0] PASS gl.getError() is gl.NO_ERROR PASS gl.getActiveUniforms(program, [mvpLocation], gl.UNIFORM_NAME_LENGTH) is null PASS gl.getError() is gl.INVALID_ENUM PASS successfullyParsed is true TEST COMPLETE