Hey Cooke Overload, I do plan to release a WebGL version of the demo, but some browser-based bugs have kept me from releasing a suitable build. Stay tuned for an in-browser version!
As mentioned in a new post, an in-browser build of the demo has proven to be littered with WebGL-specific bugs that are tricky to trace and even trickier to solve. With that being said, an in-browser version may take longer to release or may not become available at all. Testing will continue, but will not be prioritized.