[bug] Allow to restrict 'mode' rights while token validation; For bug…

… 68198

DocService/sources/DocsCoServer.js

@@ -2355,7 +2355,7 @@ exports.install = function(server, callbackFunction) {
     } else if (data.documentCallbackUrl && !decoded?.editorConfig?.callbackUrl) {
       //todo callbackUrl required
       res = "editorConfig.callbackUrl";
-    } else if (data.mode && !decoded?.editorConfig?.mode) {
+    } else if (data.mode && 'view' !== data.mode && !decoded?.editorConfig?.mode) {//allow to restrict rights to 'view'
       res = "editorConfig.mode";
     }
     return res;