On 8 oct, 21:58, jmcmd <[email protected]> wrote:
> Under IE6 my application grinds to a halt because the GWT appears (i
> might be wrong) to somehow force IE6 to re-load all my CSS images any
> time their is a UI event where I make a Widget visible - even if that
> image is already visible on the screen. I can see the requests (and
> subsequent 304 response codes) in the GWT console.
>
> I've tested this behavior using GWT's Showcase and anyone can clearly
> see this same behavior.
> I have tried every server-side setting for the response headers and it
> did not change a thing.
>
> I thought this might be a Ajax/IE6 problem but a similar functionality
> using ICEFaces ( a different Ajax framework) worked - meaning that IE6
> only requested the CSS image once and only once.
>
> I've searched all over these groups and saw nothing specifically
> addressing this issue. My app (and the showcase app) work perfectly
> normal under IE7/IE8,FF, Safari so this only appears to be IE6
> related.
>
> I can't be the only one who observed this issue - perhaps I'm missing
> something obvious, but any help or guidance is greatly appreciated.
>
> My app is more or less un-usable in IE6 because I have about 80 css
> images and having IE6 make 80 request every time I make a various
> visible makes for a very sluggish experience.
>
> In great need of help....
Is this with an ImageBundle or an Image "on its own"? If you're not
using an ImageBundle, are you clipping the Image with setVisibleRect
or setUrlAndVisibleRect?
In the case of an ImageBundle or clipped Image, are you using HTTPS?
if so, make sure IE isn't configured to "not save encrypted pages to
disk" (that's because the clipping is done using the AlphaImageLoader
ActiveX)
You say you've "tried every server-side setting", have you set the
Expires and/or Cache-Control:max-age to "far future" for the image
files?
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