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function incrementFallbackSrc(img, srcs) {
if (typeof img.fallbackSrcIndex === 'undefined') img.fallbackSrcIndex = 0;
img.src = srcs[img.fallbackSrcIndex++];
}
</script>
<img
src="https://cdn-icons-png.flaticon.com/128/8067/8067997.png"
onerror="javascript: incrementFallbackSrc(this, ['https://cdn-icons-png.flaticon.com/128/8067/8067999.png',
'https://cdn-icons-png.flaticon.com/128/6912/6912971.png'
])">