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#1247 ✓resolved

IE8 Opacity Bug on Negative Values

Reported by MiltoxB | June 17th, 2011 @ 08:06 PM

It may be an issue with IE9 browsers in IE8 Mode, but when a Tween sets opacity to negative as in bounce, back, fade, the filter: opacity(alpha... breaks and several opacity alphas are added to the element which breaks the detection of the style for future .start(target) animations since it is checking the values of the current style and finds

filter: opacity(alpha=-4.282823)opacity(alpha=-2.282823)opacity(alpha=-1.282823)opacity(alpha=-0)opacity(alpha=2.282823)

Possible workaround for this case is just to not let IE8 and lower set a negative opacity whenever it needs the filter object

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