chrome.tabs.sendMessage now failing in Chrome 99 and MV3

[Sonny Chee]

Hey Guys,

I'm in the process of migrating my MV2 extension to MV3 and I notice that all of my calls to chrome.tabs.sendMessage are failing with the message:

"Uncaught (in promise) Error: Could not establish connection. Receiving end does not exist.”

These calls all worked before. Anyone else seen this issue?

[Sonny Chee]

I also tried replacing all of my sendMessage with connect/postMessage calls with no better outcome.

ie:

    var port = chrome.tabs.connect( tab.id );
    port.postMessage( {selection_text: info.selectionText} );

With this change I am getting an additional error message:

Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.
Error in event handler: Error: Attempting to use a disconnected port object
    at chrome-extension://ffjganibfaebgbaliahcdngeomnmeaba/overrides/platform_background.js:15:10

Any suggested workaround would be greatly appreciated.

[wOxxOm]

I've posted workarounds in an older post about this problem:

https://groups.google.com/a/chromium.org/g/chromium-extensions/c/st_Nh7j3908/m/1muOgSX5AwAJ

[Sonny Chee]

Thanks, wOxxOm, that was exactly what I needed.