[whatwg] hash sum tags of binary files and code blocks?

Christian Nygaard christiannygaard at gmail.com
Mon Jul 13 09:23:53 PDT 2009

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>

<link rel="stylesheet" type="text/css" href="external-style-sheet-file.css"
no need to load that style sheet ever again if it's contents has not

//Christian Nygaard
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