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There's a website I use every day, and there are lots of large images on it (uploaded by my designers).

Every time I go to a page, the images get downloaded again, and it takes forever. How can I force Chrome to cache these images?

Once uploaded, they never change. More images are uploaded each day, but when I go to a page, ALL of the images are downloaded-- even ones Chrome has downloaded before.

I suspect I may need a Chrome extension.

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Maybe you should have the web site's developer read this: – PleaseStand Nov 27 '11 at 18:48
Thanks, but since it is technically possible to customize this behavior on the client side, I'd like to do it. With a Chrome extension, for example. – Elliot Nov 28 '11 at 19:27
If you put chrome://cache in the Chrome address bar, you don't see them in the cache listing? It's odd that Chrome wouldn't cache them; I was wondering if it has cached copies, but for some reason thinks what it finds on the website is not the same as what it has cached and so downloads them again – moonpoint Jul 18 '15 at 1:26

You can use Cache Manifest HTML5

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Good info. But OP's question is about forcing caching by client – Art Gertner Dec 12 '14 at 10:42

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