I once had a ceo ask why the header image on a prominent section of our website was not showing on his machine.<p>I opened the page, and to my surprise,, the header image didn&#x27;t show on my computer either, but it showed on my coworkers screen.<p>In my standard &quot;eliminate all simple causes&quot; method I switched to incognito, and the header image loaded.<p>Somehow, I was able to recognize that it was due to an extension that was not active in incognito, and that the header image was named ...ads.png and it was catching a rather generic Adblock matcher. We renamed the file and all was good.