Issue Summary

Images that have effects on the legacy editor will be broken.

Steps to Reproduce

1. Open a page that uses the legacy editor and has effects applied.

Expected Results

The images should load

Actual Results

The image's thumbnail will be broken and the following error is thrown at the browser's console:

GET https://<instance name>.atlassian.net/wiki/download/thumbnails/296124444/image.png?version=1&modificationDate=1615497767060&cacheVersion=1&api=v2&effects=drop-shadow&width=520&height=237 500

3. Notes
It's currently not possible to apply effects to new images, the image's properties won't save.

Workaround

Either remove the effects from the image or convert the page to the new editor.