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Turnstile (on-demand mount — prerender)

Mirrors dash.cloudflare.com/login: Turnstile API script is loaded with ?render=explicit, and at navigation time the DOM has no .cf-turnstile / [data-sitekey] and no challenges.cloudflare.com iframe.

Mode: prerender — widget is rendered as soon as api.js finishes loading (still post-NavigationCompleteEvent, still via JS-driven turnstile.render()). On solve the form is not auto-submitted; click Log in to POST the captured token. Toggle prerender via ?prerender=0 (switch to submit-mount).

Variant: default — the standard sitekey used by the rest of the worker. Toggle via ?variant=hard (switch to hard sitekey).