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https://issues.apache.org/jira/browse/CB-7182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14069209#comment-14069209
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Shazron Abdullah commented on CB-7182:
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Found it. My bad implementation using NSInvocation.
https://github.com/apache/cordova-ios/blob/28b4475070cd61587c8e7ac8e7f0102d8101367f/CordovaLib/Classes/CDVCommandQueue.m#L127
The getReturnValue here just copies buffer data, and does not retain. The
runtime thinks it does a retain, so it tries to release it again, thus crash.
Fix:
Use a different way instead of NSInvocation to achieve this, see:
https://github.com/apache/cordova-ios/blob/28b4475070cd61587c8e7ac8e7f0102d8101367f/CordovaLib/Classes/CDVWebViewOperationsDelegate.m#L67
> Running mobile-spec in an iOS 8 project but using UIWebView results in an
> exception
> -----------------------------------------------------------------------------------
>
> Key: CB-7182
> URL: https://issues.apache.org/jira/browse/CB-7182
> Project: Apache Cordova
> Issue Type: Sub-task
> Components: iOS
> Reporter: Shazron Abdullah
> Assignee: Shazron Abdullah
>
> This is using the dev branch in the parent issue.
> Can't really trace it properly yet since it throws it in the
> UIApplicationDelegate and putting symbolic breakpoints and catching all
> exceptions didn't give any results, but the clue is in JavaScriptCore,
> probably. Note this is when the preference UseWKWebView is false (which is by
> default)
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