State sharing between instances

[ArturBa]

🐞 bug report

State sharing between instances

✍️ Description

When using two independent instances of the app they share some data and inputs.
When scrolling a page on one app, the other gets scrolled simultaneously.
Going back and forward in history is also shared across apps as the taps on the page.

🕵🏼‍♂️ Is this a regression?

No. 1.4.0 has a similar issue

🔬 Minimal Reproduction

1. Open one app with a page
2. Open the second app with a page
3. Scroll on the first app
4. The page on the second app is getting scrolled as well

🌍 Your Environment

Ctrl + F1 doesn't work

System: Ubuntu 22.04
App version: 1.5.0.AppImage

🔥 Exception or Error or Screenshot

[manojVivek]

This happens because it's using a shared instance of browsersync. We can fix this by creating one instance of browsersync per window.

[cyberGHostJs]

Hi @manojVivek , do you have anyone working on this?

[manojVivek]

@cyberGHostJs No, this is not actively looked into.

[cyberGHostJs]

Can I go ahead and work on it?

[manojVivek]

@cyberGHostJs Please go ahead!

[cyberGHostJs]

okay, I will get on it right away, I'll reach out if i have questions.

[astuanax]

@cyberGHostJs Are you still interested in fixing this issue?

Have you made any progress?

I think this can be solved by using a random port on startup.

BROWSER_SYNC_PORT is assigned to the localhost:BROWSER_SYNC_PORT os, if we assign random port number of startup, multiple apps will listen to different instances on different ports.

Should work?