New Context with viewport set to None does not behave as in Playwright

Describe the bug Given Chromium is started passing the parameter --start-maximized When calling the keyword New Context viewport=${None} Then the window is not maximized.

The corresponding code in Node.JS works as expected:

const playwright = require('playwright');

(async () => {
  const browser = await playwright.chromium.launch({args: ["--start-maximized"], headless: false});
  const context = await browser.newContext({viewport:null});
  const page = await context.newPage();
  await page.goto('https://browser.fi/');
  await browser.close();
})();

To Reproduce Steps to reproduce the behavior:

Execute the following Robot Framework script:

*** Settings ***
Library    Browser

*** Test Cases ***
Open Chromium Maximized
    New Browser    chromium    headless=false    args=["--start-maximized"]
    New Context    viewport=${None}
    New Page       https://browser.fi

Expected behavior Using Browser Library the window should be maximized, just like in Playwright.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chromium
• Version: 102.0.5005.40

Additional context

[Snooz82]

@aliasgerkw As far as i know, yes. you have to set that chrome argument. I can not test it, because on mac fullscreen does not work. But @mardukbp tested it on windows.

[aaltat]

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But what words would be better then? Well, usually it is better to use words like: Is someone already looking on this issue and if not I could take a look or If no-one is looking at this problem, I can take a look. Or if you are reporting that you are also seeing the problem, just say: I think that am also seeing the same problem. and add the information included in your first post, without the first sentence. The later way is telling to the maintainers that other people are also seeing the problem and it gives maintainers valuable feedback what is important and what it not.