We had unordered list for social media icons that had ahrefed images. We swapped them out for text links that used CSS background images.  If a user just loads the page, they'll get the old version. I thought HTTP status codes is suppose to be sent for the browser to reload using the new html and CSS images.  Any ideas? Of course the user can just reload the page but at first the list will look funny.
Changed an unordered list from images links to CSS background text links - uncached versions are showing broken
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