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17 lines
478 B
JavaScript
17 lines
478 B
JavaScript
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function loadingFailed(imgEl) {
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return imgEl.complete && imgEl.naturalWidth === 0
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}
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document.querySelectorAll('[data-ol-fallback-image]').forEach(imgEl => {
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function showFallback() {
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imgEl.src = imgEl.getAttribute('data-ol-fallback-image')
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}
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if (loadingFailed(imgEl)) {
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// The image loading failed before the sprinkle ran.
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showFallback()
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} else {
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// The image loading might fail in the future.
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imgEl.addEventListener('error', showFallback)
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}
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})
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