Clever Geek Handbook

Differences in reload behavior between FF and IE

In Firefox, reloading reloads everything, while in IE, Refresh reloads only part of the HTML of the current page. In IE, you need to press Ctrl-F5 for a full reboot.

Why is this difference and is there an article somewhere explaining this difference in more detail?

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Firefox uses a cache like all modern browsers, so it doesn't load everything on update. Various browser engines handle caching slightly differently, but it mostly depends on the headers being sent.



You should check the w3 page on http caching and also this caching tutorial for more details on how web caches work. You should also check out this article on the differences between firefox and IE caching .

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Ctrl-F5 reloads without cache in IE.
F5 must also reload images while the browser detects that they have changed.



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