Using Json in Cordova/Phonegap

I'm trying to load some data from an external JSON file, and I don't know why, but my code doesn't work.


    var urlDesc = "";
        type: "GET",
        dataType: "json",
        url: urlDesc,
        success: function(data){
            $.each(data, function(i,item){
        error: function(){
            alert('There was an error loading the data.');

The json.php returns something like this:

    "color": "red",
    "size": "big"
  }, {
    "color": "white",
    "size": "small" 


Have you checked the Javascript console whilst running your application on a simulator or device? If using Cordova 5 or higher, it's likely that you need to configure the Content Security Policy meta tag in your index.html to allow access to your server URL. If using iOS 9 you will also need to configure an App Transport Security exception as iOS 9 will not allow non-SSL connections by default.

If you have these issues, using Safari or Chrome remote debugger should show appropriate errors in the JavaScript console that would look something like this:

Refused to connect to '<your server url>' because it violates the following Content Security Policy directive: "default-src 'self' data: gap: 'unsafe-eval'". Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.

To fix this, you will need to add a Content Security Policy meta tag in the head in index.html that looks like this:

<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *; connect-src">

If you are then running on iOS 9 also, you will need to modify your application's -Info.plist to configure an App Transport Security exception to allow your app to connect to your server without requiring SSL. Add something like this to the -Info.plist:


There is a detailed blog post explaining how to configure backend security for Cordova here that points to a sample app that shows you how to get this working on iOS and Android.

Additionally don't do your Ajax call before Cordova/PhoneGap raises the "deviceready" event (documentation).

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