Pages API Preview / News-Post / Image or thumbnailWebUrl

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What type of issue is this?

Question

What SharePoint development model, framework, SDK or API is this about?

SharePoint CSOM

Target SharePoint environment

SharePoint Online

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

No response

Issue description

I have created an application where I query the news entries from a specific page in SharePoint. The query so far actually works. I use an app registration with client credential with shared secret.

The URL to retrieve the data from the page is: https://graph.microsoft.com/beta/sites/3965bc3d-71f8-4d42-8489-77faa98db39f/pages/

I only have a problem with the thumbnail/image of the news post. When I create a news post the images are displayed if I use an existing or from the template of SharePoint. If I upload one myself or if I create a news post as a news link from a website I have no access to the image and get the following error message "403 FORBIDDEN".

Currently I am using the thumbnailWebURL. Here is an example URL where the image is displayed: IMAGE

Here is the thumbnailWebURL where I created the news post via news link from an external website: IMAGE

Do I need to retrieve the image data for the thumbnail differently or is this a bug from the API?

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