[webkit-dev] Feature Request: Dynamic Application Cache

Brendan Eich brendan at mozilla.org
Sat Nov 17 14:40:19 PST 2012

Brady Eidson wrote:
> On Nov 17, 2012, at 7:47 AM, sridharn<sridhar.ndroid at gmail.com>  wrote:
>> Any updates / plans for this feature ??
> What feature?

Sridharn did not cite context, but his message is in the thread whose 
head is this post:


where Stefan Wagner wrote:


Mozilla Firefox supports dynamic adding of resources into the
application cache for offline use with the function:
window.applicationCache.mozAdd(URI String)

This is great for persistent storage of assets via javascipt. Instead
of predefining those assets in the manifest file one can use
javascript to cache the needed assets. Is there something similar
planed? Like window.applicationCache.webkitAdd(URI String) ?



>> I do agree with  Stefan on this ..
>> I've been banging my head on how
>> to  cache video files using html 5 storage features and there just doesn't
>> seem to be a straightforward way
>> (they all are currently intended for small size text / mobile webkit doesn't
>> support file system and blah blah)
>> to do that and feel appcache is cleaner way going forward too for media
>> files ..
> Where are you seeing this not work?
> At least on the Apple port you should be able to stick audio/video in the app cache.  There are a handful of bugzillas that show this work being done a long time ago.
> If it's not working for you, I look forward to reading the bug you file at bugs.webkit.org.
>> Also, mobile webkit (chrome/safari in ios4) don't seem to appcache mp3 files
>> (~5MB) .. Is this a known issue ?
> iOS4 is ancient.  I forget when this first shipped but it should work in iOS6.
>> This should hopefully go away once the dynamic mechanism is added I hope ..
> Again, not sure precisely which dynamic mechanism you're talking about since you included no context in your email, but I don't see how a dynamic app cache mechanism is related to the app cache supporting media, which it does.
> ~Brady
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