Support return value from content script executed by MV2

[harmonyharmo]

Feature Request

Support return value from content script executed by MV2 chrome.tabs.executeScript

Is your feature request related to a bug?

"N/A"

What are the alternatives?

Message passing, which has more overhead and harder to write.

Additional context

Add any other context or screenshots about the feature request here.

[aklinker1]

Already supported for both MV2 and MV3: https://wxt.dev/guide/essentials/scripting.html#execute-script-return-values

There is the other issue you created, #1428, but MV2 content scripts do already return values. So I'm gonna mark this specific issue as completed. We can discuss MV2 support for registration: "runtime" on the other issue.

[harmonyharmo]

Unfortunately when I use the MV2 tabs.executeScript, I don't get the return value in the content script:

[harmonyharmo]

I get empty {} instead of '123'

[aklinker1]

You're not returning the value...

- '123'
+ return '123'

[harmonyharmo]

It's the same, gets {}. you can try it

[aklinker1]

@harmonyharmo can you share a reproduction so I don't have to create it from scratch?