cacao 0.2.0

CORS Access-Control-Allow-Origin Proxy

Cacao Proxy - CORS Access-Control-Allow-Origin Proxy

Cacao is a Cross-Origin (CORS) proxy. It allows Javascript running in a web browser to access a remote HTTP resource without cross-origin restrictions. It runs on several different platforms, and essentially works by adding a Access-Control-Allow-Origin: * header to an HTTP response.

IP Camera Streaming

The main use case is to access a remote streaming MJPEG URL published by an IP Camera, via an <img> tag pointing to Cacao. Without Cacao, this image data is usually marked as cross-origin, and therefore cannot be used as the source for a WebRTC stream.

With Cacao, the <img> can be copied to a <canvas> and then (since CORS is allowed) sent by the browser via WebRTC.

TODO: The Mediasoup Broadcast Example will contain an example of using Cacao to make an IP Camera publishable via WebRTC.

TODO: Include other use-cases.

Usage

Standalone Cacao Proxy

Cacao can be run as a proxy server on Linux (and other Unix-like), MacOS, and Windows.

You first need to install the Dart SDK, then run:

$ cd bin
$ cacao --help

Michael FIG [e-mail], 2018-12-05