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Identify images that are displayed wider than their natural width (which results in them looking blurry)
  1. Paste this into your browser console.
  2. Start resizing the window.
  3. Any images that are ever displayed in a blurry fashion will throw an error and get faded out to 0.05 opacity.
window.addEventListener('resize', () => {
Array.from(document.querySelectorAll('img')).forEach(img => {
if ((img.clientWidth * window.devicePixelRatio) > img.naturalWidth) {
console.error(img); = '0.05';
} else { = '1';
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