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✓Speculation rules are hints to the browser to proactively download pages in the background so they appear instantly when the user navigates to them. Shipping in Safari 27.3 (beta). Probes Document.prerendering, Document.prerenderingchange_event, PerformanceNavigationTiming.activationStart. More: developer.mozilla.org/docs/Web/API/Document/preren… html.spec.whatwg.org/multipage/speculative-loading… web-platform-dx.github.io/web-features-explorer/fe…
("prerendering" in document) && ("onprerenderingchange" in document) && (typeof PerformanceNavigationTiming !== "undefined" && "activationStart" in (PerformanceNavigationTiming.prototype || PerformanceNavigationTiming))("prerendering" in document) && ("onprerenderingchange" in document) && (typeof PerformanceNavigationTiming !== "undefined" && "activationStart" in (PerformanceNavigationTiming.prototype || PerformanceNavigationTiming))
Chrome