Browser not updating website
Wikipedia Try out now Opera is a web browser developed by Opera Software.
Wikipedia Safari is a web browser developed by Apple Inc. First released as a public beta in 2003 on the company's OS X operating system, it became Apple's default browser beginning with Mac OS X Panther.
As we've discussed before, your internet browser - be it Internet Explorer, Firefox, Opera or any of the others - typically keeps what's called a 'cache' of recently downloaded files.
The classic example is the image that is the logo at the top of every page of Ask Leo! Your browser will download it once and then keep it in the cache so that on each page that uses the exact same logo the browser doesn't need to download it again, it can simply use what's in the cache.
The problem you're experiencing happens when the cache goes "wonky".
(Gotta love those not-so-technical terms.) In essence, that check for "is there something newer than what I have in my cache" fails, or the attempt to download and replace what's in the cache fails.