React Scan not activating on certain websites

[antoine-mille]

Hello,

I have noticed an issue with the React Scan extension. On certain websites like X or Instagram, the tool does not seem to activate, and I do not receive the message indicating that these sites are not using React. However, on other websites, such as Uber Eats, the extension works perfectly.

I have tried several solutions, but the problem persists only on specific sites. Do you have any suggestions or insights to help resolve this issue?

By the way, congratulations on this amazing extension!

[pivanov]

Can you give use some steps to reproduce and more important did you use the browser extension or?

[raymondboswel]

I noticed that it stopped working on Github as well (at least for me). My guess is that they took steps to prevent React Scan from running.

Edit - it looks like the React Scan extension violates their CSP. Perhaps they realized that extensions being allowed to hook into React is a security flaw and tightened it down 🤷