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This is the first time I’ve come across this…
After logging-in, Umbraco loads empty and the image below is displayed in the Chrome dev tools. ( Umbraco version 7.1xx )
This is our main Production website. Without a working Umbraco the site is not only useless but also can not sell our products or support existing customers.
I have 4 years experience with Umbraco and I’ve never come across this, any help is appreciated !!!
The page does have code in it though…
Has something changed with your host? Also what is the response code in the network tab?
That's about as much light as I can shine on this topic from my own experience. If you learn more please post it here for others to try and help!
I rebooted my server a few times, hoping that would fix it.
If memory serves me right, the dependency handler could be used for both CSS and JS. So the server itself needs to set that response header.
I suspect there's more information about what's happening if you look at the network tab. The screenshot I'm pasting is just one example from a public Umbraco site I could access.
That's the limit to my knowledge. Hopefully you are receiving some error message that we can do more with. I shared your post on Twitter also.
After further digging much deeper (and a lot of time), it seems that the root problem is using a CDN!!!
Who could have thought!?
CloudFront in my case.
Disabling my CloudFront CDN makes Ubraco work normally!
Maybe this would help someone in the future.
Any ideas on how to make Umbraco work with a CloudFront CDN ?
I googled this specific issue but didn't find much...
Many thanks :)
Possibly you need to configure your CDN to cache urls with query strings separately. The path for the dependency handler is the same if I remember correctly, but the query string is different. If your CDN is configured to ignore query strings, it may be serving one specific file for all your dependencies (a css file in this instance)
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