The editor content does not sync on different browsers

[tiavina-mika]

Please save me some time and use the following template. In 90% of all issues I can't reproduce the problem because I don't know what exactly you are doing, in which environment, or which y-* version is responsible. Just use the following template even if you think the problem is obvious.

Checklist

• [x] Are you reporting a bug? Use github issues for bug reports and feature requests. For general questions, please use https://discuss.yjs.dev/
• [ ] Try to report your issue in the correct repository. Yjs consists of many modules. When in doubt, report it to https://github.com/yjs/yjs/issues/

Describe the bug The editor content is sync across the tabs of the same browsers. But it does not sync with different browsers.

To Reproduce Steps to reproduce the behavior:

1. Go to https://codesandbox.io/s/github/tiavina-mika/tiptap-editor-mui
2. Open the page in another tabs
3. Write something
4. The content is shared accross the tabs
5. Open the page in another browser
6. The content is not the same

Expected behavior The editor content should be the same on different browsers.

Environment Information

• Browser [e.g. Chrome, Firefox]
• Yjs version: yjs v13.6.10. y-webrtc: v10.2.6