PageClient Class

Page

Seeds compilation cache for given url. Compilation cache does not survive cross-process navigation.

Evaluates given script in every frame upon creation (before loading frame's scripts).

Brings page to front (activates tab).

Capture page screenshot.

Returns a snapshot of the page as a string. For MHTML format, the serialization includes iframes, shadow DOM, external resources, and element-inline styles.

Clears seeded compilation cache.

Tries to close page, running its beforeunload hooks, if any.

Crashes renderer on the IO thread, generates minidumps.

Creates an isolated world for the given frame.

Disables page domain notifications.

Enables page domain notifications.

Determines whether the specified object is equal to the current object.

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Generates a report for testing.

GetAdScriptId

Returns the unique (PWA) app id. Only returns values if the feature flag 'WebAppEnableManifestId' is enabled

GetAppManifest

Returns present frame tree structure.

Serves as the default hash function.

GetInstallabilityErrors

Returns metrics relating to the layouting of the page, such as viewport bounds/scale.

GetManifestIcons

Returns navigation history for the current page.

Get Origin Trials on given frame.

Get Permissions Policy state on given frame.

Returns content of the given resource.

Returns present frame / resource tree structure.

Gets the Type of the current instance.

Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).

Creates a shallow copy of the current Object.

Navigates current page to the given URL.

Navigates current page to the given history entry.

Print page as PDF.

Requests backend to produce compilation cache for the specified scripts. `scripts` are appeneded to the list of scripts for which the cache would be produced. The list may be reset during page navigation. When script with a matching URL is encountered, the cache is optionally produced upon backend discretion, based on internal heuristics. See also: `Page.compilationCacheProduced`.

Reloads given page optionally ignoring the cache.

Removes given script from the list.

Resets navigation history for the current page.

Acknowledges that a screencast frame has been received by the frontend.

Searches for given string in resource content.

Enable Chrome's experimental ad filter on all sites.

Enable page Content Security Policy by-passing.

Sets given markup as the document's HTML.

Set generic font families.

Set default font sizes.

Intercept file chooser requests and transfer control to protocol clients. When file chooser interception is enabled, native file chooser dialog is not shown. Instead, a protocol event `Page.fileChooserOpened` is emitted.

Controls whether page will emit lifecycle events.

Sets the Secure Payment Confirmation transaction mode. https://w3c.github.io/secure-payment-confirmation/#sctn-automation-set-spc-transaction-mode

Tries to update the web lifecycle state of the page. It will transition the page to the given state according to: https://github.com/WICG/web-lifecycle/

Starts sending each frame using the `screencastFrame` event.

Force the page stop all navigations and pending resource fetches.

Stops sending each frame in the `screencastFrame`.

Returns a string that represents the current object.

Pauses page execution. Can be resumed using generic Runtime.runIfWaitingForDebugger.

Fired for failed bfcache history navigations if BackForwardCache feature is enabled. Do not assume any ordering with the Page.frameNavigated event. This event is fired only for main-frame history navigation where the document changes (non-same-document navigations), when bfcache navigation fails.

Issued for every compilation cache generated. Is only available if Page.setGenerateCompilationCache is enabled.

Fired when opening document to write to.

DomContentEventFired

Emitted only when `page.interceptFileChooser` is enabled.

Fired when frame has been attached to its parent.

Fired when frame has been detached from its parent.

Fired once navigation of the frame has completed. Frame is now associated with the new loader.

Fired when a renderer-initiated navigation is requested. Navigation may still be cancelled after the event is issued.

FrameResized

Fired when frame has started loading.

Fired when frame has stopped loading.

Fired when interstitial page was hidden

Fired when interstitial page was shown

Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been closed.

Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to open.

Fired for top level page lifecycle events such as navigation, load, paint, etc.

LoadEventFired

Fired when same-document navigation happens, e.g. due to history API usage or anchor navigation.

Fired when a prerender attempt is completed.

Compressed image data requested by the `startScreencast`.

Fired when the page with currently enabled screencast was shown or hidden `.

Fired when a new window is going to be opened, via window.open(), link click, form submission, etc.