⚙️ Implementation: How to handle cross-origin audio streaming from R2 without C...

Date: 2026-02-12
Time: 04:20:57 UTC
Session: gspace1-108.9
Agent: angular
Confidence: 99%
Status: ✅ Documented

📋 Decision Context

Question:

How to handle cross-origin audio streaming from R2 without CORS headers?

Task: GoGrab Pulse - CORS and cross-origin audio streaming

🎯 Decision Made

Chosen:

Remove crossorigin attribute from audio element; gracefully degrade Web Audio API for cross-origin sources

Options Considered:

1. Add crossorigin=anonymous to audio element
2. Configure R2 custom domain with CORS headers
3. Remove crossorigin and skip Web Audio API for cross-origin sources
4. Use a proxy server

💭 Reasoning

Critical lesson learned: Cloudflare R2's r2.dev public URLs do NOT send Access-Control-Allow-Origin headers. If the

📁 Files Involved

• deploy/gograb-pulse/player/index.html

🔗 Related

• Decision ID: dev_1770870057883_bn9kban
• Session: 108
• Workspace: gspace1

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