With S3-style storage services (such as AWS S3 and Wasabi), it is possible to mark files for public access, enabling access through 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 ensure that you isolate any issues that relate to your URL, including letting Facebook know about the issue and soliciting 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 does allow you to do this when you see the error message.
Note: Wasabi has changed its default policy, allowing paid accounts to set public access to objects or buckets by default. By default, public use of a bucket, folder, or file is allowed only by certain paid (not trial) accounts. Please see Change in Ability to configure PUBLIC Access to objects and buckets for more details.