HTTP headers | Upgrade-Insecure-Requests
Last Updated :
07 Nov, 2019
The HTTP header Upgrade-Insecure-Requests is a request type header. It sends a signal to the server expressing the client’s preference for an encrypted and authenticated response, and it can successfully handle the upgrade-insecure-requests HTTP headers Content-Security-Policy directive.
Syntax:
Upgrade-Insecure-Requests: 1
Directives: The HTTP Upgrade-Insecure-Requests header does not accepts any directives. It acts as directives with some headers, like Content-Security-Policy for the handling of CSP. With Vary header, it works as a directive containing the value of 1.
Example:
To check this Upgrade-Insecure-Requests in action, go to Inspect Element -> Network check the request header forUpgrade-Insecure-Requests like below, Upgrade-Insecure-Requests is highlighted you can see.
Supported Browsers: The browsers are compatible with HTTP Upgrade-Insecure-Requests header are listed below:
- Google Chrome
- Microsoft Edge
- Firefox
- Opera
- Safari
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