In version 2.1.0 everything worked, after update bounding box artifacts are drawn .
labelbmfont_boundingbox.png (42.1 KB)
In version 2.1.0 everything worked, after update bounding box artifacts are drawn .
labelbmfont_boundingbox.png (42.1 KB)
Also submitted to github (https://github.com/cocos2d/cocos2d-html5/issues/863) and got answer. It is Needed to set renderMode to 1 (canvas) in cocos2d.js (your html5 js boot script).
Thanks for your feedback, it will be fixed soon.