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-rw-r--r--app/javascript/mastodon/utils/resize_image.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/app/javascript/mastodon/utils/resize_image.js b/app/javascript/mastodon/utils/resize_image.js
index a8ec5f3fa..d566edb03 100644
--- a/app/javascript/mastodon/utils/resize_image.js
+++ b/app/javascript/mastodon/utils/resize_image.js
@@ -71,7 +71,7 @@ const processImage = (img, { width, height, orientation, type = 'image/png' }) =
   // and return an all-white image instead. Assume reading failed if the resized
   // image is perfectly white.
   const imageData = context.getImageData(0, 0, width, height);
-  if (imageData.every(value => value === 255)) {
+  if (imageData.data.every(value => value === 255)) {
     throw 'Failed to read from canvas';
   }