resize browser with puppeteer

Question

Is it possible to resize the browser window with puppeteer? I know there is page.setViewport, but is there anything like browser.setViewport? Maybe it sounds like there isn't much difference if you're running the headless version, but it can be useful if you're actually displaying the window, I'd like to do something like this:

const puppeteer = require("puppeteer");

(async () => {
let browser = await puppeteer.launch({
    headless: false
});
await browser.setViewport({
    width: 100,
    height: 100,
});
})();

Answer 1

What I've found works for setting the browser size (but not the viewport size) is to set the following chrome command line switch when you're launching puppeteer:

await puppeteer.launch({
  headless: false,
  args: [
    '--window-size=X,Y'
  ]
});

All you have to do is substitute whatever resolution settings you want into the code instead of the X (width) and Y (height).

Update:
I've since located the following issue in which someone, rather helpfully, has provided their own resizeWindow() function which, apparently, does what you need. I've not tried it out so can't vouch for whether it works or not but it might be worth a try!

https://github.com/Codeception/CodeceptJS/issues/973