1510510 - Extension webRequest features cannot force re-auth for proxy server after successful auth

Status: UNCONFIRMED

(WebExtensions :: Request Handling, enhancement, P3)

Description

[tdriley]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36

Steps to reproduce:

1. In a Web Extension, have a username and password ready in the JavaScript or storage that is correct for this proxy.
2. Add a handler for event webRequest.onAuthRequired which provides the username and password when challenged.
3. Set a proxy with browser.proxy.register.
4. Make a request (and auth) through the proxy.
5. Subsequent requests to this proxy will always use the same details in the `Proxy-Authorization`header, there is no way to force re-auth.



Actual results:

The same authentication details are always used in requests through that proxy.


Expected results:

There should be a way to "clear" out those details being used in the browser.

Comment 1

[tdriley]

Update: can be recreated using the code examples here: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onAuthRequired#Examples

Comment 2

[David Durst [:ddurst]]

This works as expected, but it might be nice to be able to clear.

Comment 3

[macfanpl]

@DavidDurst

Oh hell yeah, works as expected, sure. Noone expects to meet an idiot, right?

Comment 4

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'WebExtensions::Request Handling' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 5

[justas543]

Experiencing this as well, in Chrome I was able to do:

const clearProxyCache = async (proxyHostname: string) => {
	const origins = [`http://${proxyHostname}`, `https://${proxyHostname}`]

	await chrome.browsingData.remove(
		{
			origins,
		},
		{ cookies: true, cacheStorage: true, serviceWorkers: true },
	)
}

Does not seem to work on Firefox for me, requiring browser restart. Would be nice if it worked