Load extensions on Windows

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 1.5.0
• Platform / OS version: Windows 10
• URLs (if applicable):
• Node.js version: 9

What steps will reproduce the problem?

Please include code that reproduces the issue.

I needed to load a extension that a page requires, so I added --disable-extensions-except and --load-extension args but it doesn’t load on windows. The full args I passed were:

[ '--enable-logging',
  '--v=1',
  'about:blank',
  '--disable-extensions-except="C:\\Users\\...\\chrome-extensions"',
  '--load-extension="C:\\Users\\...\\chrome-extensions"' ]

And the result was:

---------------------------
Error Loading Extension
---------------------------
Failed to load extension from:
C:\Users\...\...\...\node_modules\puppeteer\.local-chromium\win64-564778\chrome-win32\"C:\Users\...\chrome-extensions". Manifest file is missing or unreadable.
---------------------------
OK
---------------------------

What is the expected result?

Load extensions properly.

What happens instead?

---------------------------
Error Loading Extension
---------------------------
Failed to load extension from:
C:\Users\...\...\...\node_modules\puppeteer\.local-chromium\win64-564778\chrome-win32\"C:\Users\...\chrome-extensions". Manifest file is missing or unreadable.
---------------------------
OK
---------------------------

I think if I pass the extension path as a relative path it might be work but I also think that is so awful.

[mayank2567]

I temporary solved this issue by removing --disable-extensions from the default arguments.

but then it does not load any extentions

[mercertom]

I finally fixed this exact error/issue with ublock. I had originally made several errors. It now works.

1. I had a typo in my datadir declaration
2. ublock has nested directories with weird names (I’m not sure this mattered)

Here’s the working code:

	const ublock = '~/Documents/jsprojects/puppeteer-extensions/ublock/';
	const datadir = '~/Documents/jsprojects/chromeprofile/';
	const browser = await puppeteer.launch({
		headless: false,
		userDataDir: datadir,
		defaultViewport: { width:1000, height: 1080 },
		args:
		[
		`--disable-extensions-except=${ublock}`,
		`--load-extension=${ublock}`,
	});

In /puppeteer-extensions/, I changed /chromium.ublock0.152341/ or whatever to plain /ublock/, and deleted a nested sub-directory with an equally funky name. Within /ublock/ there is a manifest.json. Many extensions have multiple layers of weird-named directories. Change the dir names to something simple like /ublock/, and then make sure your line declaring the extension has that directory path typed perfectly in your code.

@Ajju2211 I think you should unzip the extension and absolute/relative path to the directory that contains manifest.json.