[BUG] Overlapping UI inputs for multiple web clients

[Hiverlab]

Describe the bug When setting up UI inputs for multiple clients, I found that the mouse input events overlap across web clients.

To Reproduce Steps to reproduce the behavior:

1. Set up base URP project
2. Set up input system based on #201
3. Add a button at the same position for each of the two canvases
4. Run project and open 2 web clients
5. Click on the button on the first client (Click event occurs on second client)
6. Click on the button on the second client (Click event occurs as usual)

Expected behavior Clicking on the UI button on a particular web client should not interact with another client's UI elements.

Screenshots

1. When clicking on the button in the first client on the right, click event occurs in second client

2. When clicking on the button in the second client on the left, click event occurs in second client

Environment

• OS: Windows
• Browser: Chrome
• Unity Version: 2019.4.13 (LTS)
• Package version 2.2.2-preview

[karasusan]

This issue has not been fixed yet. We need to extend InputSystemUIModule component to fix.

[karasusan]

memo: URS-367