使用 puppeteer 在无头 chrome 中运行 Flash 游戏

Question

How can I run a flash game in headless chrome using puppeteer? I'm trying to screenshot this flash game but the game doesn't run and is replaced by "Couldn't load plugin" text.

Here's the relevant code I used to generate the screenshot and its output, running in ubuntu on windows subsystem linux:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch({args: ['--no-sandbox', '--disable-setuid-sandbox']});
  const page = await browser.newPage();
  await page.setViewport({width: 1243, height: 882});
  await page.goto('http://www.bigfuntown.com/Game-59.html');
  await page.screenshot({path: 'game.png'});

  await browser.close();
})();

Answer 1

In modern Chrome versions flash is blocked by default and requires user interaction to be enabled.

As this was problematic to automate I've made a puppeteer wrapper for this purpose: puppeteer.setExtra({allowFlash: true})

Note that headless: false is still required due to puppeteer limitations.

Answer 2

You need to enable the Flash plugin .

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As the official puppeteer documentation states:

By default, Puppeteer disables extensions when launching Chrome . You can load a specific extension using:

 const browser = await puppeteer.launch({ headless: false, args: [ '--disable-extensions-except=/path/to/extension/', '--load-extension=/path/to/extension/', ] }); 

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Footnote : Note that, depending on the operating system you're using and the way you choose to distribute the Node module/application, this could cause issues of varying degrees. For instance, if you're on Linux, getting the latest version of Flash running may not be entirely straightforward . If you need to package it and distribute to clients, that's a horde of issues on its own. That, however, is off-topic for this answer, I believe.