[larkinrichards]

I once had a ceo ask why the header image on a prominent section of our website was not showing on his machine.

I opened the page, and to my surprise,, the header image didn't show on my computer either, but it showed on my coworkers screen.

In my standard "eliminate all simple causes" method I switched to incognito, and the header image loaded.

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.

[TeMPOraL]

We had a similar issue with our Hackerspace website - we have a section on the site that shows logos partners and sponsors, and at some point it disappeared. We found out that some class name in a div containing those images matched to some Adblock blacklist. We changed the CSS names to something silly and now everything is back to normal :).

[togusa]

Most of Microsoft's MSDN web site falls over with the same problem as well.