Blog
WebCodecs: VideoFrame and EncodedVideoChunk, CORS for media pipelines, and transferable buffers from workers
Feeding encoded chunks from cross-origin fetches requires CORS-clean responses—verify `Access-Control-Allow-Origin` on CDN segments.
1 min read
webcodecscorsvideo
DRM
Encrypted Media Extensions use separate license servers—CORS policies differ from segment hosts.
ClearKey test content still needs HTTPS and consistent origins.
Workers
Transferable ArrayBuffers avoid copies—ensure ownership handoff does not bypass CORS checks on original fetch.