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HTTP/2 200
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
x-powered-by: Express
access-control-allow-origin: *
cache-control: public, max-age=0
last-modified: Tue, 01 Jan 1980 00:00:01 GMT
etag: W/"ee4-49773873e8"
content-encoding: gzip
x-cloud-trace-context: 1e16487824e8f2a89e71d8edc9a3d1c0;o=1
date: Thu, 25 Dec 2025 22:06:19 GMT
server: Google Frontend
content-length: 1648
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Permissions Policy Kitchen Sink
Permissions policy is not supported in your browser. Try Chrome Canary and enable the
or by adding the
Select a policy to begin.
Permissions Policy allows web developers to selectively enable, disable, and modify the behavior of various features and APIs in the browser. This can provide a well-lit path towards good performance and prevent common footguns when building and maintaining web apps.
Permissions policy is not supported in your browser. Try Chrome Canary and enable the --enable-experimental-web-platform-features flag.
You control permissions policies through an HTTP header:
Permissions-Policy: geolocation=* Permissions-Policy: geolocation=() Permissions-Policy: geolocation=self Permissions-Policy: geolocation="https://google-developers.appspot.com"
or by adding the allow attribute on iframes:
<iframe allow="geolocation"> <iframe allow="geolocation 'self'"> <iframe allow="geolocation 'none'"> <iframe allow="geolocation https://google-developers.appspot.com">