Sharing preview in shareSheet mode not working

[devcros4]

Checklist before submitting a bug report

• [X] I've updated to the latest released version of the SDK
• [X] I've searched for existing GitHub issues
• [X] I've looked for existing answers on Stack Overflow, the Facebook Developer Community Forum and the Facebook Developers Group
• [X] I've read the Code of Conduct
• [X] This issue is not security related and can safely be disclosed publicly on GitHub

Xcode version

14.2

Facebook iOS SDK version

16

Dependency Manager

SPM

SDK Framework

Share

Goals

Share link via ShareDialog with preview of the link and with FB app installed.

Expected results

Actual results

Steps to reproduce

• use shareDialog
• set shareDialog mode to .shareSheet

Code samples & details

override func prepare(withActivityItems activityItems: [Any]) {
        guard let url = activityItems.first(where: { $0 is URL }) as? URL else {
            self.shareContent = nil

            return
        }

        let shareContent = ShareLinkContent()

        shareContent.contentURL = url

        self.shareContent = shareContent
    }

    override func perform() {
        guard let shareContent = shareContent else {
            logger.error(ReplicaCategory.sharing, "Error while sharing to Facebook: no content")

            return
        }

        let shareDialog = ShareDialog(viewController: self.fromViewController, content: shareContent, delegate: self)

        shareDialog.mode = .shareSheet

        do {
            try shareDialog.validate()
        } catch {
            logger.info(ReplicaCategory.sharing, "FacebookShareActivity - \(error.localizedDescription)")

        }

        shareDialog.show()
    }

[GertSallaerts]

We are experiencing the same results, but it only happens when you share a link that's "never" been shared on Facebook. If you either share the link to Facebook on web first or run it through the Sharing Debugger tool before opening the share sheet the preview shows fine.

This makes it sound like the issue is not in the SDK but in the Facebook app (or more specifically the ios sharing extension) itself.