Mobile Safari 5mb HTML5 application cache limit?

html local-storage mobile-safari application-cache
JFH picture JFH · May 25, 2010 · Viewed 28.4k times · Source

It's becoming evident in my testing that there's a 5mb size limit on Mobile Safari's implementation of HTML5's application cache.

Does anyone know how to circumvent or raise this? Is there some unexposed meta tag that I should know about? I have to cache some video content for an offline app and 5mb is not going to be enough.

Answer

KimKha picture KimKha · Apr 17, 2012

I tried to write a simple test with this manifest:

CACHE MANIFEST
# 2010-06-20:v4

http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
http://peach.blender.org/wp-content/uploads/big_big_buck_bunny.jpg
http://apod.nasa.gov/apod/image/9712/orionfull_jcc_big.jpg
http://www.thelivingmoon.com/43ancients/04images/Titan/titan5km_huygens_big.jpg
http://upload.yeuamnhac.com/musica/dan_lily/dancontent/rh108poster1big.jpg

This cache will need 11.4MB of storage.

When I open a page include that manifest file, it say something like that: "This website require to use up to 25MB of storage, do you want to increase local storage?".

I think I got what the way iOS do:

  • You only have 5MB for local storage (include HTML5 application cache)
  • If your web need more, Safari need user's agreement for some packages (up to 10MB, or 25MB, or more...)

Hope that useful for you.

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