[whatwg] hash sum tags of binary files and code blocks?
Ian Hickson
ian at hixie.ch
Tue Jul 28 12:48:58 PDT 2009
On Mon, 13 Jul 2009, Christian Nygaard wrote:
>
> What if one included hash sums of every binary file in html tags, plus
> embedded hash sums in streaming file blocks, then the client would never
> need to look at time stamps/expire headers to determine if it could
> cache the objects. That would make caching very easy on mobile devices
> with slow datalinks, make it possible for service providers to cache
> objects globally for their customer base. One could also augment whole
> code blocks with hash sums for example css this could possibly be more
> efficient than time expire.
>
> <img src="example.jpg" md5="f2bd08fae5adb96c9befa02bddb4a90c">
>
> <hash md5=bda497e29a81a038208ab94101e2e793" skipaheadlines=10>
> <style>
> ....
> </style>
> </hash>
>
> <link rel="stylesheet" type="text/css" href="external-style-sheet-file.css"
> md5="dee0b8572297fe4e3b004cfe188ecad3"/>
> no need to load that style sheet ever again if it's contents has not
> changed.
As others have said, it seems easier to just use the filename as the way
to do this.
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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