Dev Headers is a developer tools chrome extension. it's a free extension , it has 2 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 1250 days ago.
Makes it easier to read Content-Security-Policy (CSP) and Feature-Policy (FP) headers, and checks that all other related headers have been set for the HTML and linked resources (e.g. Referrer-Policy). It can also set a "X-Dev-Key" header on all requests to your server, where the value is typically kept as a secret, and allows your server to enable additional debug information (just as an extra precaution, your server should also check the source IP address, and ideally that you are logged in).
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from dev headers support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of dev headers.
You could click to report abuse of dev headers.