puppeteer page.authenticate https proxy not work - node.js

Question

Running puppeteer with Proxy authentication failing.
Puppeteer version: 1.8
Platform / OS version:MacOS 10.13.6
Node.js version:v10.9.0
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({
headless:false,
ignoreHTTPSErrors:true,
devtools:true,
timeout:3000,
args: ['--no-sandbox','--proxy-server=xxx:xxx']
});
const user='xxx';
const password='xxx';
const page = await browser.newPage();
// await page.setExtraHTTPHeaders({
// 'Proxy-Authorization': 'Basic ' + Buffer.from(`${user}:${password}`).toString('base64'),
// });
await page.authenticate({username:user, password:password});
await page.goto('https://www.apple.com/');
let title = await page.title();
console.log("title:" + title);
await browser.close();
})();
got error:
(node:5858) UnhandledPromiseRejectionWarning:
Error: net::ERR_TUNNEL_CONNECTION_FAILED at https://www.apple.com/
at navigate (/xxx/node_modules/_puppeteer#1.8.0#puppeteer/lib/Page.js:622:37)
at process._tickCallback (internal/process/next_tick.js:68:7)
(node:5858) UnhandledPromiseRejectionWarning:
Unhandled promise rejection. This error originated either by throwing
inside of an async function without a catch block,
or by rejecting a promise which was not handled with .catch().
(rejection id: 1)

Answer 1

const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({
headless:false,
ignoreHTTPSErrors:true,
devtools:true,
timeout:3000,
args: ['--no-sandbox','--proxy-server=https=xxx:xxx']
});
const user='xxx';
const password='xxx';
const page = await browser.newPage();
await page.authenticate({username:user, password:password});
await page.goto('https://www.apple.com/');
let title = await page.title();
console.log("title:" + title);
await browser.close();
})();
For me it worked by adding https between the proxy server argument.

Answer 2

Within your args to launch puppeteer,
You can also try this format:
--proxy-server=http=xxx:xxxx
OR
Have you tried setting proxy like this '--proxy-server=https=MyWorkingProxyIP:Port' according to docs https://www.chromium.org/developers/design-documents/network-settings ?