Partial support is reported as unsupported

I do like the idea of this application. But my test gave me the impression, that you interprete "partially supported" as "unsopported". The check for "box-sizing: border-box" says, that the following browsers do not support it:

IE (8,9,10,11), Chrome (36,37,38,39), Safari (8,7.1), Opera (25,26,12.1), iOS Safari (8,7.1,8.1), Opera Mini (8.0), Android Browser (4.1,4.3,4.4), Chrome for Android (39), IE Mobile (10,11), UC Browser for Android (9.9)