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Why is firefox / chrome showing a different page than IE8?

When I look at this posted Google Docs I see the latest version with Firefox and Chrome , but an older version with IE8 . Also, clearing the screen via PHP / Curl gives me an older version.

I've tried CTRL-Refresh in IE8, but I can't show me the newest version. No matter what headers I try to change in PHP / Curl, I cannot show me the newest version.

Note: I'm sure I could dig in IE8 and find some cache entry to clear, but what is not happening with this URL, which happens on, say, cnn.com, which really gives me current news every time. when I look at it in IE8 and not in the cached version of the site a couple of days ago? For example, does Google Docs not send any header that browsers (or at least IE and PHP / Curl expect) to not show the cached version?

What am I misunderstanding about browsers / headers / caching here? How can it be that different browsers show different content of one page?

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(source: deviantsart.com )

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3 answers


Here's the deal: IE shows the latest , it's Firefox and Chrome that cache the page.



Try pressing CTRL+ F5in Firefox and Chrome , if that doesn't work, install the web developer Toolbar Extension for Firefox and select Disable Cache from the Disable option menu.

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Try navigation and download: http://ccleaner.com

Once you've installed it, close all browsers, then run the cleaner. This should clear the cache from all browsers (as well as a lot of temporary files, etc.).



After completing, reopen each browser and try the URL again. I am assuming that you have some cached data from the page in browsers that is affecting your tests.

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It looks like the browser is caching old data. You can try clearing the cache in your browser and reopening the link.

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