maybe there is no info in docs, but in forum:
1. strapi-v4-override-csp
2. Strapi v4 deployed to AWS EBS trying to load resource from localhost
3. Strapi v4 broken image Blob: dl.airtable.com
4. Error uploading media asset when using S3 storage
5. Strapi v4 broken image, even when the image’s link works (Cloudinary)