DataCloneError: Proxy object could not be cloned.

[noscripter]

Describe the bug

Uncaught runtime errors:
ERROR
DataCloneError: Proxy object could not be cloned.

To Reproduce
Steps to reproduce the behavior:

1. Click on the toolbar icon to open the popup;
2. Click on close icon to close a certain tab;
3. The above error occurs.

Expected behavior

Close tab successfully and no error was thrown.

Screenshots

Desktop (please complete the following information):

• OS: macOS
• Browser Firefox
• Version 123.0 (64-bit)

Additional context

I'm using the source code, and run pnpm start in debugging mode.

In the debug inspect console, I can see the error and its stack trace as below.

Expand the stack trace can see the following image:

Click on it can see the source code:

I believe it has something to do with firefox itself since the error source is in firefox. But I'm wondering if we could do anything to avoid this.

[xcv58]

Hi @noscripter,

Thanks for reporting this. I have two questions:

1. Does this affect the feature if you install it from in Firefox store https://addons.mozilla.org/en-US/firefox/addon/tab-manager-v2/ ?
2. Can you please share your firefox version since I cannot reproduce?

[xcv58]

I can reproduce now, the problem happens only in dev model (start command) but not build. I guess it might be related to dev utility like StrictMode.