PHP - GZIP, Cache, Internet Explorer

2008-06-18

I have just discovered a little problem with IE. No surprise there.

If I send headers to prevent a file (htm, css, js, etc) from being cached, and that file is compressed (gzip), IE will still cache the file. I guess this is because IE is stupid and can't deal with the decompression unless it writes the file to the cache.

These are the headers I am currently sending out:

expires "Thu, 01 Jan 1970 00:00:00 GMT"
pragma "no-cache"
cache-control "no-store, no-cache, must-revalidate"
content-encoding "gzip"
content-transfer-encoding "binary"
content-length ---

Does anyone know of a workaround that doesn't involve checking the user agent string and sending uncompressed files to IE?

Stefan1 · 2008-07-28 #2

Hey,

this is a know problem of IE 5.5 and IE 6. Microsoft provides a hotfix for this issue, but that might not help you out:

http://support.microsoft.com/?scid=k...1722&x=10&y=13

Have you tried "last-modified"?

Stefan

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	Stefan1	2008-07-28 #2
	Hey, this is a know problem of IE 5.5 and IE 6. Microsoft provides a hotfix for this issue, but that might not help you out: http://support.microsoft.com/?scid=k...1722&x=10&y=13 Have you tried "last-modified"? Stefan