Confusion about Lighthouse report of unused JS for react devtools chrome extension

user_3257186 0
Viewed 2402

When I run Lighthouse for the project I am working on, I get

chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/react_devtools_backend.js

as no1 causer of unused JS.

How is that making sense from a performance optimization perspective? I can't control what extensions the user runs in his browser. I also can't find anything about the React dev tools in the project.

Would highly appreciate if someone could shed some light on that issue.

lighthouse report sample

react-devtools lighthouse reactjs
1 Answers

I found the issue is because the file of the devTools is installed when the page is loading... and it is useless in production mode.
So go to the extension and right click on it.
Then go to the manage extensions.
Then find the "Allow this extension to read and change all your data on websites you visit" change it to "on click".

user_150944800
Related