| Issue 66: | don't sprite transient images | |
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In some cases, web sites are using bg images that change constantly: video thumbnails, hot products, social contacts. These could technically be sprited, but logistically would require a new sprite be created every minute or every page view. One approach to avoiding recommending sprites like this is to look at the last-modified date of the image. This isn't perfect, but it could be used as a guide. |