If I change a presentation attribute such as width or height on a shape referenced by a <use> tag in a <clipPath>, the <use> does not update an instead will hide any layers that are using this clipPath. I've reproduced this here: http://jsfiddle.net/joenudell/6ftozo9r/4/ The fiddle does what I'd expect in the various versions of Chrome, FF, and IE that I tried, but fails consistently in Safari 8.0.3 (10600.3.18) and the latest WebKit nightly (r180599). I'm told the fiddle works correctly on Safari 6.1.6 (7537.78.2), so this could be a regression.
This continues to be an issue in Safari.
<rdar://problem/97101827>
Fixed with Layer Based SVG engine - test via WebKit ToT (272488@main).