This API is deprecated. Look at this article by Eric Bidelman:
http://www.html5rocks.com/en/tutorials/file/filesystem/
Also look at compatibility at:
Question
I'm trying to test the HTML5 FileReader API FileReader.readAsDataURL(file)
on mobile but I'm running into problems. It works fine in desktop Chrome, but fails in Safari and mobile Chrome/Safari
I'm using this line:
window.requestFileSystem = window.requestFileSystem ||
window.webkitRequestFileSystem
// window.requestFileSystem is undefined on Safari and mobile
Is there a trick or a setting that I am not using?
Solution
This API is deprecated. Look at this article by Eric Bidelman:
http://www.html5rocks.com/en/tutorials/file/filesystem/
Also look at compatibility at: