Hi everyone!
Hi everyone!
We’re running into a weird issue with our video uploads on Cloudflare R2, and we could use some help figuring it out.
We’re using Vue.js v3 on the frontend with the Uppy library for uploading files, and Django v4 on the backend with Boto3 (v1.34) to handle all the R2-related API stuff. We’re creating presigned PUT URLs on the backend to upload files directly to the R2 bucket from the client side (browser), including multipart uploads.
Everything works perfectly on most internet connections, but on certain ISPs, we’re getting CORS errors, and the uploads just don’t go through.
It’s super inconsistent - like, on one ISP, it’s all smooth sailing, on second the upload goes through 30% of the time, and on third, it fails every time with CORS issues. We suspect it might have something to do with slower internet speeds, but don't have any hard proofs for that.
We’ve double-checked our CORS settings on the R2 bucket, and the presigned URLs are definitely being generated correctly. We’ve also tried different devices and browsers, and the problem seems tied to specific ISPs.
R2 Bucket CORS Policy:
We’re running into a weird issue with our video uploads on Cloudflare R2, and we could use some help figuring it out.
We’re using Vue.js v3 on the frontend with the Uppy library for uploading files, and Django v4 on the backend with Boto3 (v1.34) to handle all the R2-related API stuff. We’re creating presigned PUT URLs on the backend to upload files directly to the R2 bucket from the client side (browser), including multipart uploads.
Everything works perfectly on most internet connections, but on certain ISPs, we’re getting CORS errors, and the uploads just don’t go through.
It’s super inconsistent - like, on one ISP, it’s all smooth sailing, on second the upload goes through 30% of the time, and on third, it fails every time with CORS issues. We suspect it might have something to do with slower internet speeds, but don't have any hard proofs for that.
We’ve double-checked our CORS settings on the R2 bucket, and the presigned URLs are definitely being generated correctly. We’ve also tried different devices and browsers, and the problem seems tied to specific ISPs.
R2 Bucket CORS Policy:
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