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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-14197) createFile/writeFile does not consistently execute the 'write' action resulting in files of size 0
Date Fri, 20 Jul 2018 16:06:00 GMT

    [ https://issues.apache.org/jira/browse/CB-14197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16550923#comment-16550923
] 

ASF GitHub Bot commented on CB-14197:
-------------------------------------

brodybits commented on issue #237: CB-14197: (all) Fix for createFile/writeFile silently failing
to send 'write' action
URL: https://github.com/apache/cordova-plugin-file/pull/237#issuecomment-406646565
 
 
   > @stevengill Would you be able to review this PR for me?
   
   You may want to ping <dev@cordova.apache.org> to get a review and a possible merge.

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> createFile/writeFile does not consistently execute the 'write' action resulting in files
of size 0
> --------------------------------------------------------------------------------------------------
>
>                 Key: CB-14197
>                 URL: https://issues.apache.org/jira/browse/CB-14197
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: cordova-plugin-file
>            Reporter: Will Fairclough
>            Priority: Major
>
> Occasionally when calling the *createFile* API the *write* action does not get called. It
was not very consistent though and it is very hard to reproduce. It seems as though the *onload*
event was not firing on the fileReader in the write method resulting in the file never getting
written and no callbacks being fired.
> {code:java}
> if (data instanceof File || (!isProxySupportBlobNatively && supportsBinary &&
data instanceof Blob)) {
>    var fileReader=new FileReader();
>    /* eslint-enable no-undef */
>    fileReader.onload=function () {
>    // Call this method again, with the arraybuffer as argument
>       FileWriter.prototype.write.call(that, this.result, true/* isPendingBlobReadResult
*/);
>    };
>    ...
> }
> {code}
> We found we would notice the issue more consistently when running the app in the Android
emulator subsequent times in a row with the command:
> {code:java}
> $ cordova run android{code}
> We fixed this by requiring the FileReader module:
> [https://github.com/suitespot/cordova-plugin-file/commit/2a0da7f1a43e88b801ee70a3462c3df829f4c927]
> With this change we have not noticed the issue anymore.
> I also believe this *ionic-native* issue is related to this:
> [https://github.com/ionic-team/ionic-native/issues/2067#issuecomment-403600570]
>  
>  



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