applying hflex="min" to a button with an image causes a client side JS error
tested in IE9 and IE11 (IE10 not yet tested possibly also broken, IE8 is not affected by this problem)

<zk>
<button hflex="min" image="/anyimage.png" />
</zk>

Related error information:

SCRIPT16386: No such interface supported
File: zk.wpd, Line: 6667, Column: 3

getComputedStyle [Line: 6667, Col: 3], zk.wpd
css [Line: 6497, Col: 4], zk.wpd
Anonymous function [Line: 6381, Col: 3], zk.wpd
access [Line: 833, Col: 3], zk.wpd
jQuery.fn.css [Line: 6380, Col: 2], zk.wpd
zjq.prototype.dimension [Line: 10972, Col: 3], zk.wpd
_fixMinVflex [Line: 19743, Col: 9], zk.wpd
zFlex.fixMinFlex [Line: 19964, Col: 3], zk.wpd
zFlex.onFitSize [Line: 19957, Col: 5], zk.wpd
_reversefns [Line: 11970, Col: 7], zk.wpd
_fire [Line: 12000, Col: 5], zk.wpd
fireDown [Line: 12094, Col: 3], zk.wpd
fireDown [Line: 13376, Col: 5], zk.wpd
zUtl.fireSized [Line: 13879, Col: 3], zk.wpd
replaceHTML [Line: 15488, Col: 4], zk.wpd
mtBL0 [Line: 17579, Col: 5], zk.wpd
deferred.resolveWith [Line: 1000, Col: 9], zk.wpd
ready [Line: 425, Col: 4], zk.wpd
DOMContentLoaded [Line: 907, Col: 3], zk.wpd