This stack demonstrates simple one way communication in both directions. We assume that it is not possible to get a result from calling a function in each direction - but we can send messages and use this to trigger sending a message in return - but this needs setting up in advance.
https://david.livecode.wiki/assets/wasm/WebpageInteractionStack/index.html HEIGHT 500 Andreas (When in Space) created this test stack for the web. Here we insert it in an About Frame Plugin.
wasm/WebpageInteractionStack