Upload data and image base 64 to rest server as truncated - image

Question

I'm using advanced rest console of chrome and i'm sending a rest request to a server that saves an image to database.
below the header data and the body of the request:
Header:
Content-Type: image/jpg; charset=UTF-8
Body:
device_id=1442045686166&id_utente=1&id_attivita=-1&id_prodotto=115&file=/9j/4AAQSkZJRgABAQAAAQABAAD/...
the server, not mine, it all comes back ok but here is the result
image returned
The other images were uploaded from Android application that sends requests to the same server!
The server is a java web application deployed on jboss application server.
This is the html part of retrive image:
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
<div class="panel panel-default">
<div class="panel-heading" role="tab" id="headingOne">
<label for="exampleInputEmail1">Immagine</label>
</div>
<div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
<div class="thumbnail">
<i ng-hide="imageSrc">Nessuna immagine selezionata</i>
<img ng-hide="!imageSrc" ng-src="{{imageSrc}}" on-error-src="images/noimg.png" spinner-on-load/>
<div class="caption">
<div class="form-group">
<input type="file" id="imageInputFile" name="imageInputFile" ng-model="imageInputFile" ng-change="uploadFile(this)" ng-file-select="onFileSelect($files)" base-sixty-four-input maxsize="500" accept="image/*">
<p class="help-block">Scegli un'immagine in locale.</p>
</div>
</div>
</div>
</div>
</div>
</div>
And this is the angularjs code:
$scope.uploadImage = function (id_prodotto) {
trace("uploadImage, inizio");
var img64 = $scope.imageSrc.replace(/^data:image\/(png|jpeg);base64,/, "");
$scope.bodyRawImg =
'device_id=' + $scope.key +
'&id_utente=' + $scope.BeanUtente[0].id_utente +
'&id_attivita=' + $scope.BeanUtente[0].id_attivita +
'&id_prodotto=' + id_prodotto +
'&file=' + img64;
trace("uploadImage, $scope.bodyRawImg " + $scope.bodyRawImg);
$http({
method: 'POST',
url: ($location.absUrl().split("/easyMenu/"))[0] + '/app/file/uploadFoto',
async: false,
processData: false,
headers: {
'Content-Type': 'image/jpg'
},
data: $scope.bodyRawImg,
})
.success(function (data, status, headers, config) { // success
trace("uploadImage, success");
$scope.result = (data || []);
trace("uploadImage response: " + JSON.stringify($scope.result));
})
.error(function (data, status, headers, config) { // error
trace("uploadImage, error");
});
$scope.cambioImmagine = false;