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How to drop more than <body> on chrome / chrome without a head?

The Chrome documentation contains:

The --dump-dom flag prints document.body.innerHTML to stdout:

As the title says, how can I remove a DOM object (ideally everything) using Chromium without a head? I can manually save the entire DOM using the developer tools, but I want a software solution.

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Update 2017-10-29 Chrome already has the -dump-html flag, which returns full HTML, not just the body.

v62 has it, it is already on a stable channel.

, : https://bugs.chromium.org/p/chromium/issues/detail?id=752747

( ) https://www.chromestatus.com/features/schedule

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https://bugs.chromium.org/p/chromium/issues/detail?id=752747

, , : https://peter.sh/experiments/chromium-command-line-switches/ .

Google, :

const CDP = require('chrome-remote-interface');

...

(async function() {

const chrome = await launchChrome();
const protocol = await CDP({port: chrome.port});

// Extract the DevTools protocol domains we need and enable them.
// See API docs: https://chromedevtools.imtqy.com/devtools-protocol/
const {Page, Runtime} = protocol;
await Promise.all([Page.enable(), Runtime.enable()]);

Page.navigate({url: 'https://www.chromestatus.com/'});

// Wait for window.onload before doing stuff.
Page.loadEventFired(async () => {
  const js = "document.querySelector('title').textContent";
  // Evaluate the JS expression in the page.
  const result = await Runtime.evaluate({expression: js});

  console.log('Title of page: ' + result.result.value);

  protocol.close();
  chrome.kill(); // Kill Chrome.
});

})();

: https://developers.google.com/web/updates/2017/04/headless-chrome

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