Merge pull request #1705 from NatLibFi/fix-rest-callback-quotes-skosm…

…os-2

Don't HTML encode quotes in REST API callback, to fix ONKI Selector (Skosmos 2)

controller/RestController.php

@@ -25,7 +25,7 @@ private function returnJson($data)
         // wrap with JSONP callback if requested
         if (filter_input(INPUT_GET, 'callback', FILTER_SANITIZE_FULL_SPECIAL_CHARS)) {
             header("Content-type: application/javascript; charset=utf-8");
-            echo filter_input(INPUT_GET, 'callback', FILTER_SANITIZE_FULL_SPECIAL_CHARS) . "(" . json_encode($data) . ");";
+            echo filter_input(INPUT_GET, 'callback', FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_FLAG_NO_ENCODE_QUOTES) . "(" . json_encode($data) . ");";
             return;
         }