I am debugging my chrome extension pop page, and open it in uri :
This page is using reactjs, but the react devtools is not showing.
Is it by design?
The React Dev Tools needs to inject a content script in your page to check your react components. To do that they declare in their manifest the pattern that matches any url with a permitted scheme and these are (from the docs https://developer.chrome.com/extensions/match_patterns):
http, https, file, ftp
In other words: the React Developer Tools can not run in extension pages.