Request for Mozilla Position on an Emerging Web Specification

• Specification Title: Fenced frames
• Specification or proposal URL (if available): https://wicg.github.io/fenced-frame/
• Explainer URL (if available): https://github.com/WICG/fenced-frame/tree/master/explainer
• Caniuse.com URL (optional): N/A
• Bugzilla URL (optional): N/A

Other information

Fenced frames is a framing isolation primitive designed for maximum isolation between a frame and its embedder, between which no communication is allowed. Compared with iframes, this entails a similar visual experience but radically different processing model. A fenced frame is therefore suitable for (but not required to) hosting cross-site data which must not be joined across contexts. Please note that while the motivation for fenced frames is in part fueled by FLEDGE and Shared Storage, this proposal is entirely independent and stands on its own, and is to be evaluated as such. It can indeed be used independent of those APIs.

/cc @shivanigithub