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link to "offscreen images" reference #2417

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Jun 5, 2017
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5 changes: 3 additions & 2 deletions lighthouse-core/audits/byte-efficiency/offscreen-images.js
Original file line number Diff line number Diff line change
Expand Up @@ -39,8 +39,9 @@ class OffscreenImages extends ByteEfficiencyAudit {
name: 'offscreen-images',
description: 'Offscreen images',
informative: true,
helpText: 'Images that are not above the fold should be lazily loaded after the page is ' +
'interactive. Consider using the [IntersectionObserver](https://developers.google.com/web/updates/2016/04/intersectionobserver) API.',
helpText: 'Consider lazy-loading offscreen images to improve page load speed ' +
'and time to interactive. ' +
'[Learn more](https://developers.google.com/web/tools/lighthouse/audits/offscreen-images).',
requiredArtifacts: ['ImageUsage', 'ViewportDimensions', 'traces', 'devtoolsLogs']
};
}
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