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@@ -538,7 +538,7 @@
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var on = function(emitter, type, f) {
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var on = function(emitter, type, f) {
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if (emitter.addEventListener) {
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if (emitter.addEventListener) {
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- emitter.addEventListener(type, f, false);
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+ emitter.addEventListener(type, f, { passive: true });
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} else if (emitter.attachEvent) {
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} else if (emitter.attachEvent) {
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emitter.attachEvent("on" + type, f);
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emitter.attachEvent("on" + type, f);
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} else {
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} else {
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