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https://issues.apache.org/jira/browse/CB-13245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16507826#comment-16507826
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Anthony Ward commented on CB-13245:
-----------------------------------
I proposed a fix upstream in cordova-android that has been merged, but not yet
released. This should solve the problem once the next release goes out.
> Filereader.readAsText fails on Android with long text files when
> ----------------------------------------------------------------
>
> Key: CB-13245
> URL: https://issues.apache.org/jira/browse/CB-13245
> Project: Apache Cordova
> Issue Type: Bug
> Components: cordova-plugin-file
> Affects Versions: Master
> Environment: Android 7.1.1
> Reporter: Daniel Behnen
> Priority: Major
>
> When reader.readAsText is called with an URI pointing to a local asset with a
> size greater than READ_CHUNK_SIZE = 256 * 1024, loading produces corrupt
> data.
> The behaviour is caused by a negative length returned by
> CordovaResourceApi.openForRead() when the URI is a URI_TYPE_ASSET. Given the
> negative length, Filesystem.readFileAtURL() returns the whole file instead of
> the desired part and FileReader.readSuccessCallback() does not check the
> returned buffer size. Hence, the following chunks are attated to the buffer
> regardless of whether the file was already completely read.
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