Why File preview not available？

[Xujinhe]

This application domain (https://xxxx) is not authorized to use the provided PDF Embed API Client ID.

[bkross]

I am getting the same error when using iOS 18. Desktop browsers work correctly.

I have a webapp that displays a few PDF files using Adobe's Embed API. It has worked on all platforms and browsers that we test against. After upgrading to iOS 18, I noticed that I am no longer able to view the PDFs and receive a "File preview not available" message. The same feature works fine when on desktop browsers and on iOS 17 browsers.

The attached image is from the Adobe website which works on desktop browsers but not on iOS 18 browsers.
https://acrobatservices.adobe.com/view-sdk-demo/index.html#/view/FULL_WINDOW/Bodea%20Brochure.pdf

[YoanChapron]

We have the same issue with IOS 18 only, anyone find any solution ?