How to intercept proxy authentication from Google Chrome extension?

Question

When the proxy requires authentication (using a PAC script), the user must enter a username and password. Is there a way to replace this dialog with my own script and then provide the browser with the data it needs? (Username: Password)

Answer 1

You can do this using the experimental WebRequest API: WebRequest # event-onAuthRequired

But you won’t be able to put the extension in the Chrome store.