Running jco produced js component from example host fails

[bobajeff]

Running the js component, created following this section of the guide, from the example host no longer works. I guess because it's missing some wasi bits.

Error: Failed to instantiate the example world

Caused by:
    0: import `wasi:http/[email protected]` has the wrong type
    1: instance export `fields` has the wrong type
    2: expected resource found nothing

Note transpiling and running from node.js works still.