Hacking Cookies and PWA on Ubuntu

Greg, The JavaScript Whisperer - Aug 20 - - Dev Community

Stolen from this stackoverflow

The below techniques are intended only for you to use on yourself on your own browsers with your own accounts.

So I think a lot of developers get called lazy, or at least the good ones. In reality it's our inability to be inefficient; seriously I take a moral stand against it and will find any solution to automate or make tasks: easier, more efficient, less error prone, or automated.

So my latest personal challenge/quirk was finding the best PWA system for Ubuntu/Pop-os circa 2024.

I've talked a little about this before here a few years ago it was introduced by Chrome(ish) browsers the ability to pin PWA's but also any webpage as a Desktop like app. They called it "Create Shortcut" and you could select open as a window, the site didn't have to be configured as a PWA to make use of this feature.

They've moved it from "More Tools" to "Save and Share"
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This works in Windows, MacOS, Linux; and browsers like Chrome, Chromium, Brave, and Edge. It's not too shabby.

I explored Ubuntu flavoured options to see the best though and found the tightest integration was with "Gnome Web" or Epiphany Browser

Image description A shot of how install any page as any app

Why do I think it's the best option, well look at all these options not available with the Chrome based solution

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Adding custom JS or CSS to your Web App is like 🤯 powerful.

Ok so the one quirk I found was say I was logged into gmail.com and I added it as a webapp with Gnome Web, it lost the sign in it is also sandboxed doesn't have saved passwords or sessions. I need to completely login and do 2FA, open my phone accept the login use my thumb blah blah for every google app I install. No way josé.

So finally the hacky creative lazy solution, as linked above.

  • Open devtools on your signedin instance ctrl shift i
  • refresh on the network tab and click the main doc.
  • click headers
  • copy the Cookie value
  • make sure to remove "Cookie:" if it was coppied
  • open devtools on your webapp or website to login to
  • on console run 'copiedvalue'.split(';').forEach(c => document.cookie=c); where copiedvalue is the unquoted string from the previous step

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You are now logged in, enjoy!

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