graphical effect glow results in errors

Error: WebGL warning: drawElements: Drawing to a destination rect smaller than the viewport rect. (This warning will only be given once) qtloader.js line 443 > eval:1:197638
Error: WebGL warning: texSubImage2D: Texture has not been initialized prior to a partial upload, forcing the browser to clear it. This may be slow. qtloader.js line 443 > eval:1:231910
DOMException: "A mutation operation was attempted on a database that did not allow mutations." qtloader.js:372:25
Error: WebGL warning: copyTexSubImage2D: Copying to a LUMINANCE, ALPHA, or LUMINANCE_ALPHA is deprecated, and has severely reduced performance on some platforms.