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  • Richard 3 posts 74 karma points
    Oct 20, 2020 @ 11:25

    Umbraco Azure Blob CDN - cache issue

    I've followed the guide at to implement an Azure blog CDN to host the media files. The implementation is working in that the existing /media url is now redirecting images to load from the cache CDN instead. I do however seem to be experiencing two issues:

    1. If i update an image in the back office to one with exactly the same name it still redirects to the existing image in the cache container. If i manually go to the file on the media container i can however see it has updated. Is there as such a way to force the redirect to link to the new cached image?
    2. Non images (such as a PDF) do not redirect to use the CDN. Is there a way around this?

    If I can resolve issue 1, I'd also be looking to avoid the redirect if possible so that I can have the CDN image URL directly in the HTML rather than a link to /media that then redirect. Will this be possible?

  • Angel 50 posts 106 karma points
    Nov 20, 2023 @ 20:02

    Hi Richard,

    I was wondering if you have figured out a fix to this issue? I am using Umbraco 8.18.9 and experiencing the same problem.

    -I update a PDF file in the back office with one that has changed but has the same file name. -When I re- select the PDF file through media picker on a page (which I believe I shouldnt need to do), the file that is served up when a user clicks on the link is the old version of the file. -Clicking on the link to the PDF from the Media Section of the back office loads up the OLD version of the file as well.

    Any thoughts?

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