I have the following code and up until a couple of weeks ago (or possibly one or two months because I hadn't used it in some time) everything seemed to be working fine:

```
function generateFeatureCollection(fileName) {
    require(["esri/geometry/scaleUtils", "esri/request", "dojo/dom", "dojo/on", "dojo/_base/lang"], function (scaleUtils, request, dom, on, lang) {
        var portalUrl = "http://www.arcgis.com";
        app.map.setMapCursor("progress");
        document.body.style.cursor = 'progress';
        //resolving the fakepath issue in the file location url
        var name = fileName.split(".");
        name = name[0].replace("c:\\fakepath\\", "");

        var params = {
            'name': name,
            'targetSR': app.map.spatialReference,
            'maxRecordCount': 12500,
            'enforceInputFileSizeLimit': true,
            'enforceOutputJsonSizeLimit': true
        };

        var extent = scaleUtils.getExtentForScale(app.map, 40000);
        var resolution = extent.getWidth() / app.map.width;
        params.generalize = true;
        params.maxAllowableOffset = resolution;
        params.reducePrecision = true;
        params.numberOfDigitsAfterDecimal = 0;

        var myContent = {
            'filetype': 'shapefile',
            'publishParameters': JSON.stringify(params),
            'f': 'json',
            'callback.html': 'textarea'
        };

        var genRequest = request({
            url: portalUrl + '/sharing/rest/content/features/generate',
            content: myContent,
            form: dom.byId('uploadForm'),
            handleAs: 'json',
            load: lang.hitch(this, function (response) {
                if (response.error) {
                    return;
                }
                addShapefileToMap(response.featureCollection);
            }),
        });
        genRequest.then(
            function (response) {
                //console.log("Success: ", response.layers);
            }, function (error) {
                app.notifyError("Error on upload.");
                $('#IEFill').append("<b>Upload Error: "+error+"</b>");
            });
    });
}

```

However recently an error is being thrown in the last part of the code where the line is:

```
app.notifyError("Error on upload.");

```

The following error is being thrown and I have been through all my code and have no idea what I may be doing wrong especially since this process was working and no changes were made to the best of my knowledge.

```
SyntaxError: Unexpected token <
at Object.b.fromJson (init.js:230)
at Object.json (init.js:187)
at s (init.js:192)
at c (init.js:76)
at d (init.js:76)
at b.Deferred.resolve.callback (init.js:77)
at init.js:195
at k (init.js:199)
at m (init.js:199)
at f.resolve (init.js:201)

```

Would anyone know why this error is being thrown and any possible solutions for it?