No Local HSTS

by Eric Lawrence · textslashplain.com · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Disable HSTS on all localhost responses

Users

183

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#66K

#55K among extensions

Version

1.0.0.2

updated 25 Sep 2024

Users

monthly, 2 years

Latest, 15 Oct 2026: 183 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About No Local HSTS

This extension strips the Strict-Transport-Security header from responses delivered from Localhost web servers. This helps web developers who need to build and test HTTP and HTTPS sites that are served from the same local PC. Without this extension, a Strict-Transport-Security header (HSTS) returned from a HTTPS site will also force-upgrade the HTTP site's requests to HTTPS.