File preview error - Got it working for one and not the other .. Need Help.

Question

Hello,I have a strange file preview error I do not understand. https://marketing.marketingguys.nl/acton/media/7349/acton-hosted-pdfPDF file can be viewed with PDF Embed API. PDF file hosted on same server as webpagehttps://marketing.marketingguys.nl/acton/media/7349/external-hosted-pdfPDF file can be viewed with PDF Embed API. PDF url from Adobe demohttps://marketing.marketingguys.nl/acton/media/7349/external-not-workingPDF file gives file preview error with PDF Embed API. PDF file hosted on our company website server (marketingguys.com)https://marketingguys.com/nl/knowledge/whitepaper-sales-en-marketing-alignment-whitepaper/Same PDF file as number 3,  but webpages hosted on marketingguys.com, it works. Why does the 2nd one work and the 3rd one not?

Kyle Julé24692827 · Answer

Hi there,I think this has to do with CORS. When I open your "external-not-working" link, in the browser console I see this error:Access to XMLHttpRequest at 'https://marketingguys.com/wp-content/uploads/2022/07/whitepaper-marketing-sales-alignment.pdf' from origin 'https://marketing.marketingguys.nl' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.There are browser add-ons that can help you get around such CORS errors.

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