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https://issues.apache.org/jira/browse/CB-347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267910#comment-13267910
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alexander.koerschgen commented on CB-347:
-----------------------------------------
So I just upgraded an app to Cordova-1.7.0 and tried to test data persistence
during an iOS upgrade.
Since I have no iOS 5.0 device at hand, my idea was to launch the application
in 5.0 Simulator, do some stuff which will be written to SQL/LocalStorage and
then to copy the installed application via Finder to the 5.1 Simulator. Then I
would proceed to launch the 5.1 Simulator (by running an empty cordova project
from xCode), press the home button and launch the app I just copied.
Unfortunately, all the data is lost. Indeed, everything stored under
Library/WebKit is deleted as soon as the application is launched.
Thus my question is: what is going to happen, when a user (with the
cordova-1.7.0-based app installed) upgrades his iPhone from 5.0 to 5.1? Is the
data saved by this fix (and only lost on the simulator) or will it be lost? And
is there any way to test this without having to downgrade real devices?
> localStorage / SQLDatabase Error after App update
> -------------------------------------------------
>
> Key: CB-347
> URL: https://issues.apache.org/jira/browse/CB-347
> Project: Apache Callback
> Issue Type: Bug
> Components: iOS
> Affects Versions: 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.6.1
> Environment: iOS 5.01
> PhoneGap (Any version)
> Build.PhoneGap
> Reporter: Urs Zimmermann
> Assignee: Shazron Abdullah
> Priority: Blocker
> Labels: ios5.01, localstorage, phonegap, sqldatabase, websql
> Fix For: 1.7.0
>
> Attachments: WebKit-Prefs.zip
>
>
> Hello
> After I update my phonegap app containing values and dates in both
> localStorage and SQLite database on iOS 5.1
> -> Call to window.openDatabase fails with "SECURITY_ERR: DOM Exception 18"
> -> Call to localStorage.setItem fails silently
> How to Reproduce:
> In a UIWebView, create a new DB or use localStorage from phonegap API
> Overwrite / update your app and open the same database or write to
> localStorage
> Expected Results:
> We should see the data from the database and localStorage.
> Actual Results:
> Call to window.openDatabase fails with "SECURITY_ERR: DOM Exception 18"
> Call to localStorage.setItem fails silently
> References:
> https://groups.google.com/forum/#!topic/phonegap/egzXNrBRIbk/discussion
> https://groups.google.com/forum/#!topic/phonegap/jS2IVZcg8HI/discussion
> https://issues.apache.org/jira/browse/CB-330
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