I was setting up R2 on my site following some guides here but no I just see a generic Sorry, but your upload failed. Please try again. message when I try to upload a file. The only thing I see in the logs are this: [image] I have my URLs configured in the app.yml file because the web UI was rejec…

[image] darkpixlz: Token is configured properly too [image] you created the wrong token type - you have a general API token. you need to create an R2 bucket token: [Screenshot 2026-06-21 at 5.26.37 PM] [Screenshot 2026-06-21 at 5.30.38 PM] go to the cloudflare dashboard → R2 object st…

Hey, Is it not because of the final slashs (/) in the s3 cdn url and the s3 endpoint?

are these the guides you followed? are you certain your upload bucket is named “discourse”? [image] Configure an S3 compatible object storage provider for uploads Self-Hosting information_source This topic covers how to configure some common S3 compatible Obj…

[image] Lilly: are these the guides you followed Yes, the first one is what I followed [image] Lilly: are you certain your upload bucket is named “discourse”? Correct [image] I’ll try removing the slashes and will follow up

I removed the trailing slashes, still no luck. Same Unauthorized error. Token is configured properly too [image]

are you certain the cloudflare R2 token has read/write permission and did you correctly configure the CORS policy? i know you have a bit of a unique server configuration, and the cloudflare bucket permissions and configuration need to be exactly correct or it will throw permissions errors.

yea the cloudflare dashboard can be a hornet’s nest of configuration lol. glad you got it fixed!

Can't upload to S3 (Cloudflare R2)

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darkpixlz (Pyx ) June 22, 2026, 12:31am 8

Thanks, turns out that was the problem.. needlessly confusing but that’s Cloudflare’s fault

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Can't upload to S3 (Cloudflare R2)

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