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https://issues.apache.org/jira/browse/CB-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13497348#comment-13497348
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Andrew Grieve commented on CB-1404:
-----------------------------------
Hmm, yeah, not sure what's going on. If it's reproducible, might be worth
putting a try/catch in there to see if a JS exception is happening.
Of note:
-XHR_WITH_PAYLOAD is not used in 2.2 by default. It's always NO_PAYLOAD.
-This CL makes it even less likely to attempt an XHR when there is already one
in progress:
https://git-wip-us.apache.org/repos/asf?p=incubator-cordova-js.git;a=blobdiff;f=lib/ios/exec.js;h=7ce52d94da0e834104e0ee5cc1ceb70e8cbe8104;hp=c6b8edd7f9518c0a1ca726db2216f64a45a0e0a7;hb=86411246aba4292734b9bb46dc9128e28391e424;hpb=c3517e7703ab9a1335db8a3d0974b045ae3107e5
> EXC_BAD_ACCESS when using XHR_WITH_PAYLOAD bridge mode
> -------------------------------------------------------
>
> Key: CB-1404
> URL: https://issues.apache.org/jira/browse/CB-1404
> Project: Apache Cordova
> Issue Type: Bug
> Components: iOS
> Affects Versions: 2.1.0
> Environment: iPad 2, iOS 5.1.1
> Reporter: Tom Clarkson
> Assignee: Andrew Grieve
> Fix For: 2.2.0
>
>
> When calling a plugin the app crashes on WebThread with EXC_BAD_ACCESS in
> WebCore::DocumentThreadableLoader::cancel.
> This appears to be some sort of timing issue, as it does not happen on every
> call - I am seeing it in an autosave function which makes lots of calls to
> PGSQLitePlugin.
> The error did not appear before upgrading to 2.1, and setting the bridge mode
> to IFRAME_NAV restores the previous behaviour (no crashes, but odd scrolling
> functionality).
> Setting the bridge mode to XHR_NO_PAYLOAD also seems to fix it - not sure if
> removing the payload actually does anything different or just makes it fast
> enough that the timing condition does not come up in normal app usage.
>
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