Experimental

For a given set of browsers what APIs are still considred experimental, and how long have they been experimental?

Example Comparisons
Browsers
Features

Summary

Experimental APIs

Below is a list of features that are marked as "Experimental" in Safari and Safari on iOS

Raw Data

Quick Links:

HTTP Data

API First Browser Date Last Browser Date Days in experimentation Notes
http.headers.Content-Security-Policy.script-src.inline-speculation-rules Safari12/12/2025 Safari on iOS12/12/20250
http.headers.Content-Security-Policy.script-src.trusted-types-eval 📋Safari9/15/2025 Safari on iOS9/15/20250
http.headers.Sec-Purpose.speculationrules Safari12/12/2025 Safari on iOS12/12/20250
http.headers.Sec-Speculation-Tags 📋Safari12/12/2025 Safari on iOS12/12/20250
http.headers.Speculation-Rules 📋Safari12/12/2025 Safari on iOS12/12/20250