From da9cfe778132c2382e82cc98c592c618ef709307 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Fri, 9 Aug 2024 16:46:08 +0200
Subject: [PATCH] Check that `AbortSignal.any()` is supported in `PDFViewer`
 too (PR 18586 follow-up)

Without this patch the viewer may break on load, since the check added in PR 18586 only applies to the toolbar.
---
 web/pdf_viewer.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/web/pdf_viewer.js b/web/pdf_viewer.js
index 69374c29344d4..c53678ba365d3 100644
--- a/web/pdf_viewer.js
+++ b/web/pdf_viewer.js
@@ -880,7 +880,11 @@ class PDFViewer {
           viewer.before(element);
         }
 
-        if (annotationEditorMode !== AnnotationEditorType.DISABLE) {
+        if (
+          ((typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) ||
+            typeof AbortSignal.any === "function") &&
+          annotationEditorMode !== AnnotationEditorType.DISABLE
+        ) {
           const mode = annotationEditorMode;
 
           if (pdfDocument.isPureXfa) {