From c82c24d5c037d901edbebccf62ee91c528d79c4c Mon Sep 17 00:00:00 2001
From: Greg Anderson <greg@pantheon.io>
Date: Fri, 27 Sep 2024 11:14:11 -0700
Subject: [PATCH] Speculative fix for BUGS-8929; guard against situations where
 Drupal\image\Entity\ImageStyle might not exist.

---
 pantheon_advanced_page_cache.module | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pantheon_advanced_page_cache.module b/pantheon_advanced_page_cache.module
index ad7b219..aaf7300 100644
--- a/pantheon_advanced_page_cache.module
+++ b/pantheon_advanced_page_cache.module
@@ -19,7 +19,7 @@ function pantheon_advanced_page_cache_file_update(EntityInterface $file) {
 
   // If this is an image, we need to clear the edge cache paths for every
   // image style, or those won't work.
-  if (strpos($file->getMimeType(), 'image', 0) === 0) {
+  if ((class_exists(ImageStyle)) && (strpos($file->getMimeType(), 'image', 0) === 0)) {
     $styles = ImageStyle::loadMultiple();
     foreach ($styles as $style) {
       $file_uri = $file->getFileUri();