SharePoint Thumbnails blocked by CORS in PowerApps Code App

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Posted on by JD-18061111-0

SharePoint thumbnails are blocked by CORS in PowerApps Code apps, anyone have a workaround? Works fine in Dev but as soon as I push to PowerApps I get CORS.

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JD-18061111-0 19 on at

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Graph API

REST API

and
Generating the URL with _layout15

All return a redirect to the same URL so are blocked by CORS

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Haque 3,653 on at

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@JD-18061111-0

Let's try these two approaches first if you have capacity:

Use Public or Proxy Storage for Images: Move images you want to display into a publicly accessible location (e.g., Azure Blob Storage or a public folder in your app) and reference them from there to avoid CORS restrictions.

Use Power Automate to Retrieve Images as Base64: Create a Power Automate flow that fetches the image content from SharePoint and returns it as a Base64 string. Then, in Power Apps, bind the image control to this Base64 string with a prefix like "data:image/png;base64," & Base64String. This bypasses CORS because the image is embedded directly.

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JD-18061111-0 19 on at

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Solution here Solved: Upload File to SharePoint Document Library Code Apps Groups or EntraID Connector

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