Lazyworker

What's this?

This is just a very very thin wrapper which emulates the web worker API inside the page: no concurrency, but it lets you debug your web worker script with <insert your web debugger here>.

Issues

• It uses XMLHttpRequest to grab the script, so it doesn't support cross domain scripts.
• Using any globals but onmessage and postMessage will pollute your global scope. You don't want that.
• No concurrency

Download

Just include the script before you invoke the Worker constructor. That's it.
Grab it here: lazyworker.js

Note:

Probably you could fix both the aforementioned issues using an iframe: here's a broken implementation

Example