MV3 issue sending stateless message to content script from service worker

[Dennis Park]

Hi, I am currently developing a new extension, and have decided to update from MV2 to MV3. Previously, I had a simple background script (see below) that would simply add some event listeners for browserActions (updated to action) and commands, that would then send a message to chrome.tabs for my content script to intercept. However, when registered as a service worker in MV3, these stateless event listeners no longer seem to work... what am I doing wrong?

[Matthew Podolak]

If you have a default popup set in the manifest /a popup is created, an event will not be created.

From the docs for actionListener: "Fired when an action icon is clicked. This event will not fire if the action has a popup."

[Dennis Park]

I have no default_popup defined in my manifest, nor any calls to action.setPopup()... my full app manifest:

[Dennis Park]

as it turns out, I'm blind and forgetful. my project setup had been unregistering service workers

[Matthew Podolak]

Glad you were able to resolve it!

[Simeon Vincent]

Dennis, you shouldn't need to do any SW registration or updating. Chrome transparently handles that for you.

Were you using a service worker in the MV2 version of your extension?

Simeon - @dotproto

Chrome Extensions DevRel

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[wOxxOm]

This is probably tenth time I see people trying to register a service worker manually in an extension so it might make sense to add a big warning in the documentation telling people not to do it. Both in the migration guide and in the article about the service worker.

[Simeon Vincent]

Thanks for the suggestion, wOxxOm. I'm adding it to the docs backlog now. 

Simeon - @dotproto

Chrome Extensions DevRel