Global error handler for debugging with PhoneGap Developer App

onerror.js

// https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror
window.onerror = function (msg, url, lineNo, columnNo, error) {
    var string = msg.toLowerCase();
    var substring = "script error";
    if (string.indexOf(substring) > -1){
        alert('Script Error: See Browser Console for Detail');
    } else {
        var message = [
            'Message: ' + msg,
            'URL: ' + url,
            'Line: ' + lineNo,
            'Column: ' + columnNo,
            'Error object: ' + JSON.stringify(error)
        ].join('\n');

        console.log(message);
        alert(message);
    }

    return false;
}