Playwright::chromium([...]) silently ignores unknown options (channel, proxy, ...) #194

Version: 1.5.0.

Playwright::launch() honors only headless, slowMo, args and context. Anything else is silently dropped. Playwright::chromium(['headless' => true, 'channel' => 'nonesuch']) launches the bundled Chromium without complaint. I used channel and proxy this way and believed they worked; I only noticed from a screenshot-size difference and then from the user-agent. Browser context options such as ignoreHTTPSErrors also have to be nested under context.

channel and proxy are supported through PlaywrightConfigBuilder + PlaywrightFactory, which also rejects an unknown channel properly: Unsupported chromium channel "nonesuch". (Related: #191, withExecutablePath().)

Suggestion: either map the documented launch options, or throw InvalidArgumentException for keys the helper doesn't handle. A short pointer from the README's launch-options section to PlaywrightConfigBuilder for channel/proxy would also help.