diff -r 78990a8a069b -r 0fce13da58af server/src/app/Exceptions/Handler.php
--- a/server/src/app/Exceptions/Handler.php	Tue Oct 04 11:58:39 2016 +0200
+++ b/server/src/app/Exceptions/Handler.php	Tue Oct 04 13:53:56 2016 +0200
@@ -38,6 +38,12 @@
      */
     public function render($request, Exception $e)
     {
+        if ( $request->isXmlHttpRequest() || $request->wantsJson() ) {
+            return response()->json([
+                'message' => class_basename( $e ) . ' in ' . basename( $e->getFile() ) . ' line ' . $e->getLine() . ( ( $message = $e->getMessage() ) ? ': ' . $e->getMessage() : '.' ),
+                'trace' => $e->getTrace()
+            ], 500);
+        }
         return parent::render($request, $e);
     }
 }