Dev Headers

Adds a header for dev websites.

As of June 2026, Dev Headers has 12 users in the Developer Tools category.

Usersup 9.1 percent+9.1%
12
12
Ratingno change0%
— reviews
Reviewsno change0%
Version
2.0.2
Manifest V3

History

3 snapshots

Tracking since Apr 21, 2026.

12.16119.84Apr 21, 2026Jun 1, 2026
View as table
DateUsersRatingReviewsVersion
Apr 21, 2026112.0.2
May 7, 2026122.0.2
Jun 1, 2026102.0.2
Now122.0.2

Permissions & access

Permissions
scriptingstoragedeclarativeNetRequestwebRequest
Host access
<all_urls>

Screenshots

Dev Headers screenshot 1Dev Headers screenshot 2Dev Headers screenshot 3Dev Headers screenshot 4Dev Headers screenshot 5

About

Makes it easier to read Content-Security-Policy (CSP) and Permissions-Policy (PP) 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).

Technical

Version
2.0.2
Manifest
V3
Size
77.38KiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
gjfaoldcikappkiagjapllkfcfogobmb
Developer ID
u26f5f993dec7151518281ee9f1daaaf4
Developer Email
[email protected]
Created
Jan 11, 2020
Last Updated (Store)
Aug 6, 2025
Last Scraped
Jun 1, 2026
Website
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 1, 2026.