diff --git a/www/common/onlyoffice/inner.js b/www/common/onlyoffice/inner.js
index 3df2cfe92..3a64551ff 100644
--- a/www/common/onlyoffice/inner.js
+++ b/www/common/onlyoffice/inner.js
@@ -734,7 +734,7 @@ define([
                 if (window.sendCredentials) { xhr.withCredentials = true; }
                 xhr.responseType = 'arraybuffer';
                 xhr.onload = function () {
-                    if (/^4/.test('' + this.status)) {
+                    if (/^[45]/.test('' + this.status)) {
                         reject(this.status);
                         return void console.error('XHR error', this.status);
                     }