Chrome extensions injection

Allows injecting scripts into the page context from a Chrome extension.

If you try to do the following directly from your extension's code, it won't work in the dev console:

window.sayHi = () => alert('Hello world!')

But if you place this code into executeInjected, it works fine

Using sendInjectionEvent/addInjectionEventHandler, you can pass data from the page context to your extension context.