I've followed the guide at https://our.umbraco.com/Documentation/Extending/FileSystemProviders/Azure-Blob-Storage/index-v7 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?