<ul><li>Building a file upload feature for your web app without using a backend by uploading files directly to Cloudflare R2 using a pre-signed URL and plain fetch.</li><li>Step 1: Generate a Signed Upload URL on the Server to avoid exposing R2 credentials on the frontend.</li><li>Step 2: Upload from the Frontend using Fetch with a minimal example of HTML file input and plain JavaScript for faster and secure file uploads straight to Cloudflare.</li><li>Make sure your R2 bucket has CORS enabled for PUT requests to ensure smooth functionality.</li></ul>

Uploading Files to Cloudflare R2 from the Frontend (No Axios Needed!)

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