1 files changed, 1 insertions, 1 deletions
diff --git a/chromium/chrome/browser/resources/print_preview/print_preview_utils.js b/chromium/chrome/browser/resources/print_preview/print_preview_utils.js
index 7836ad7956d..bfd199c3801 100644
--- a/chromium/chrome/browser/resources/print_preview/print_preview_utils.js
+++ b/chromium/chrome/browser/resources/print_preview/print_preview_utils.js
@@ -152,7 +152,7 @@ function pageRangeTextToPageRanges(pageRangeText, opt_totalPageCount) {
 function pageRangeTextToPageList(pageRangeText, totalPageCount) {
   var pageRanges = pageRangeTextToPageRanges(pageRangeText, totalPageCount);
   var pageList = [];
-  if (pageRanges instanceof Array) {
+  if (Array.isArray(pageRanges)) {
     for (var i = 0; i < pageRanges.length; ++i) {
       for (var j = pageRanges[i].from;
            j <= Math.min(pageRanges[i].to, totalPageCount); ++j) {