On Sep 28, 2012, at 20:58, "Brendan Eich" <[email protected]> wrote:

> John Lenz wrote:
>> The best thing I see for the future is if the Browser vendors didn't reparse 
>> JavaScript when loading from cache, this would help the best case scenarios, 
>> but doesn't help the worse case where it harder to find wins.
> 
> Yes, why hasn't this happened? We had a Mozilla intern working on it, but I'm 
> not sure where that went. It seems no major browser caches post-parsed tree 
> serializations or other intermediate forms. Anyone know differently?
> 
> /be

A pretty niche example, but: Windows 8 Store apps written in HTML5/JS are 
“bytecode cached” at package time, i.e. downloading an app from the store gives 
you bytecode instead of (or, in addition to?) pure JS.

Details at http://msdn.microsoft.com/en-us/library/windows/apps/hh849088.aspx
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