Widely Available
Security
id: upgrade-insecure-requests
Upgrade insecure requests
The
Upgrade-Insecure-Requests HTTP request header tells the server that the response should redirect to a secure (HTTPS) resource.
Baseline Status:
Achieved Widely Available on Oct 30, 2020 (Cross-browser Newly Available since Apr 30, 2018).
Desktop Browser Engine Support
Google Chrome
44
Supported
Mozilla Firefox
48
Supported
Apple Safari
10.1
Supported
Microsoft Edge
17
Supported
Mobile Browser Engine Support
Chrome Android
44
Firefox Android
48
Safari iOS
10.3
Specifications and References
MDN Browser Compat Data Keys: