#150 new
Frank Burleigh

Raising Effect.Opacity on a P with first-line bold rule depresses IE7

Reported by Frank Burleigh | December 31st, 2008 @ 06:46 AM

Let's talk about an edge case. ;-) Through some hours horsing around with IE7 I've learned that this bit of scripting:

new Effect.Opacity(aStageElt, { from: 0.0,to: 1.0,duration: 1.0} );

run on a P element whose first-line is styled this way:

stagebox p#stage:first-line {



knocks IE7 into the next solar system. WinXP doesn't quite call IE7's mood "not responding" but nonetheless IE7 has in fact stopped responding.

Details: prototype and script* 1.8.2.

It's hard to say why this is your "bug" but I'm not sure where else I'd put it. I've also extracted my use into a reduced case (remove the commenting around the above style rule to see IE7 sleep) but have left enough of what I was doing intact so you can compare Firefox 3.x and Safari with the IE7 behavior.

Changing the direction does alter that behavior. To get IE7 to be bad, the snip must go from less to more opacity.

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script.aculo.us is an open-source JavaScript framework for visual effects and interface behaviours.
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