[CB-14110] Cordova Plugin File not reading large json files correctly - android

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 6.0.1
• Component/s: cordova-plugin-file
• Labels: android

Environment

cordova version: 7.1.0

cordova-android: 7.1.0

cordova-ios: 7.1.0

• Assignee: Unassigned
• Reporter: Joel Henry
• Created: 30/May/18 02:21
• Updated: 01/Jun/18 06:22

Description

When reading a large json file (293kb), readAsText renders string incorrectly, adding duplicate text after the file's text ends and breaking json structure. JSON.parse the text fails due to this. It hangs and fails.

const root = `${this.window.cordova.file.applicationDirectory}www/assets/`;

this.window.resolveLocalFileSystemURL(this.root + fileName,

(fileEntry: FileEntry) => {

fileEntry.file(file => {

const reader = new (<any>this.window.cordova).FileReader();

reader.onloadend = function () {
console.log(JSON.parse(this.result));
};

reader.readAsText(file);
});
});