How to fix 'Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.'

Question

I have the following error in the Chrome Dev Tools console on every page-load of my Node/Express/React application:

Unchecked runtime.lastError: Could not es

Answer 1

It was tab bnundler for me: https://chrome.google.com/webstore/detail/tab-bundler/ooajenhhhbdbcolenhmmkgmkcocfdahd

Disabling the extension fixed the issue.