With S3-style storage services (such as AWS S3 and Wasabi), it is possible to mark files for public access, making them accessible via a publicly reachable URL. These URLs can be shared through social media sites, including Facebook. Facebook examines all URLs from a security perspective, and Wasabi has received reports from some customers indicating that they get one of the following Facebook error messages.
Wasabi is working with Facebook to determine why they believe this error message is necessary when sharing URLs for files stored in Wasabi.
The general method for troubleshooting these problems is to use the Facebook sharing debug tool (https://developers.facebook.com/tools/debug/sharing/) and enter your URL. Wasabi encourages you to use this tool to isolate any issues related to your URL, including notifying Facebook about the issue and seeking their help if needed.
As soon as we have an update from Facebook, we will post a note on our Knowledge Base. Until then, it is safe to share the URL anyway, as Facebook allows you to do so when you see the error message.
Note: Wasabi has changed its default policy, allowing paid accounts to set objects or buckets to public by default. By default, public access to a bucket, folder, or file is allowed only for certain paid (not trial) accounts. See Change in Ability to configure PUBLIC Access to objects and buckets for more details.