Methods

Call these methods on the NitroWebViewType received through hybridRef={callback(...)}.

Method	Return	Behavior
goBack()	void	Go back in history.
goForward()	void	Go forward in history.
reload()	void	Reload the current page.
stopLoading()	void	Stop loading; iOS also cancels pending navigation decisions and a source waiting for shared-cookie import.
evaluateJavaScript(code: string)	Promise<string>	JSON text. Parse once. iOS rejects evaluation/serialization errors; Android page exceptions can look like null.
injectJavaScript(code: string)	void	Side effect only. No result or completion signal.
postMessage(data: string)	void	Dispatch a page message once. iOS window; Android document.
getCookies(url: string)	Promise<Cookie[]>	Absolute HTTP(S) URL. iOS selected store; Android name/value only.
setCookie(url: string, cookie: Cookie)	Promise<void>	Write to the selected store. Expiry in milliseconds.
clearCookies()	Promise<void>	Remove every cookie in the store, including other origins/views sharing it.
clearCache()	Promise<void>	Resource cache only. Preserves cookies, DOM storage, and history.
clearHistory()	Promise<void>	Android clears past/forward entries except the current page. iOS no-op.
requestFocus()	Promise<void>	Request native focus. Resolution is not proof of DOM input focus.

Lifecycle and failures

After Android renderer exit, old void calls do nothing and old Promise calls reject with NitroWebViewState. Remount on retry and capture a new ref. Cookie/cache work already submitted to the platform can still complete.

After iOS unmount, store methods reject rather than falling back to a default store.

Read JavaScript, cookies and sessions, and troubleshooting.