Opening local HTML file using Puppeteer

I just did a test locally (you can see I did this on windows) and puppeteer happily opened my local html file using page.goto and a full file url, and saved it as a pdf:

'use strict';

const puppeteer = require('puppeteer');    
(async() => {    
const browser = await puppeteer.launch();
const page = await browser.newPage();    
await page.goto('file://C:/Users/compoundeye/test.html');    
await page.pdf({
  path: 'test.pdf',
  format: 'A4',
  margin: {
        top: "20px",
        left: "20px",
        right: "20px",
        bottom: "20px"
  }    
});    
await browser.close();    
})();

If you need to use a relative path might want to look at this question about the use of relative file paths: File Uri Scheme and Relative Files