refactor IntersectionObserver to observe viewport in single-column mode (#12735)
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					 1 changed files with 5 additions and 2 deletions
				
			
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			@ -210,10 +210,13 @@ export default class ScrollableList extends PureComponent {
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  }
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  attachIntersectionObserver () {
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    this.intersectionObserverWrapper.connect({
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    let nodeOptions = {
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      root: this.node,
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      rootMargin: '300% 0px',
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    });
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    };
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    this.intersectionObserverWrapper
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      .connect(this.props.bindToDocument ? {} : nodeOptions);
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  }
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  detachIntersectionObserver () {
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