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Content Index API: A Brief Overview
The Content Index API lets PWAs register offline-ready pages with the browser, making saved articles and other content easier to discover and manage.
Clay Hess
February 4, 2026
The Content Index API lets PWAs register offline-ready pages with the browser, making saved articles and other content easier to discover and manage.
Federated Credential Management (FedCM) is a browser-mediated sign-in API that enables “Sign in with…” flows without relying on third-party cookies. It standardizes the login experience, reduces cross-site tracking signals, and helps identity providers and relying parties deliver more reliable, privacy-preserving authentication.
The EyeDropper API lets web apps offer a browser-provided eyedropper mode so users can pick a color from any pixel on their screen—even outside the browser—using clear, user-driven controls.
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