class: Frame

At every point of time, page exposes its current frame tree via the page.mainFrame() and frame.childFrames() methods.

Frame object’s lifecycle is controlled by three events, dispatched on the page object:

  • ‘frameattached’ - fired when the frame gets attached to the page. A Frame can be attached to the page only once.
  • ‘framenavigated’ - fired when the frame commits navigation to a different URL.
  • ‘framedetached’ - fired when the frame gets detached from the page. A Frame can be detached from the page only once.

An example of dumping frame tree:

  1. const { firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
  3. (async () => {
  4.   const browser = await firefox.launch();
  5.   const page = await browser.newPage();
  6.   await page.goto('https://www.google.com/chrome/browser/canary.html');
  7.   dumpFrameTree(page.mainFrame(), '');
  8.   await browser.close();
  10.   function dumpFrameTree(frame, indent) {
  11.     console.log(indent + frame.url());
  12.     for (const child of frame.childFrames()) {
  13.       dumpFrameTree(child, indent + '  ');
  14.     }
  15.   }
  16. })();

An example of getting text from an iframe element:

  1. const frame = page.frames().find(frame => frame.name() === 'myframe');
  2. const text = await frame.$eval('.selector', element => element.textContent);
  3. console.log(text);

frame.$(selector)

The method finds an element matching the specified selector within the frame. See Working with selectors for more details. If no elements match the selector, the return value resolves to null.

frame.$$(selector)

The method finds all elements matching the specified selector within the frame. See Working with selectors for more details. If no elements match the selector, the return value resolves to [].

frame.$eval(selector, pageFunction[, arg])

The method finds an element matching the specified selector within the frame and passes it as a first argument to pageFunction. See Working with selectors for more details. If no elements match the selector, the method throws an error.

If pageFunction returns a Promise, then frame.$eval would wait for the promise to resolve and return its value.

Examples:

  1. const searchValue = await frame.$eval('#search', el => el.value);
  2. const preloadHref = await frame.$eval('link[rel=preload]', el => el.href);
  3. const html = await frame.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello');

frame.$$eval(selector, pageFunction[, arg])

The method finds all elements matching the specified selector within the frame and passes an array of matched elements as a first argument to pageFunction. See Working with selectors for more details.

If pageFunction returns a Promise, then frame.$$eval would wait for the promise to resolve and return its value.

Examples:

  1. const divsCounts = await frame.$$eval('div', (divs, min) => divs.length >= min, 10);

frame.addScriptTag(options)

  • options <Object>
    • url <string> URL of a script to be added.
    • path <string> Path to the JavaScript file to be injected into frame. If path is a relative path, then it is resolved relative to current working directory.
    • content <string> Raw JavaScript content to be injected into frame.
    • type <string> Script type. Use ‘module’ in order to load a Javascript ES6 module. See script for more details.
  • returns: <Promise<ElementHandle>> which resolves to the added tag when the script’s onload fires or when the script content was injected into frame.

Adds a <script> tag into the page with the desired url or content.

frame.addStyleTag(options)

  • options <Object>
    • url <string> URL of the <link> tag.
    • path <string> Path to the CSS file to be injected into frame. If path is a relative path, then it is resolved relative to current working directory.
    • content <string> Raw CSS content to be injected into frame.
  • returns: <Promise<ElementHandle>> which resolves to the added tag when the stylesheet’s onload fires or when the CSS content was injected into frame.

Adds a <link rel="stylesheet"> tag into the page with the desired url or a <style type="text/css"> tag with the content.

frame.check(selector, [options])

  • selector <string> A selector to search for checkbox to check. If there are multiple elements satisfying the selector, the first will be checked. See working with selectors for more details.
  • options <Object>
    • force <boolean> Whether to bypass the actionability checks. Defaults to false.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise> Promise which resolves when the element matching selector is successfully checked. The Promise will be rejected if there is no element matching selector.

This method fetches an element with selector, if element is not already checked, it scrolls it into view if needed, and then uses frame.click to click in the center of the element. If there’s no element matching selector, the method waits until a matching element appears in the DOM. If the element is detached during the actionability checks, the action is retried.

frame.childFrames()

frame.click(selector[, options])

  • selector <string> A selector to search for element to click. If there are multiple elements satisfying the selector, the first will be clicked. See working with selectors for more details.
  • options <Object>
    • button <”left”|”right”|”middle”> Defaults to left.
    • clickCount <number> defaults to 1. See UIEvent.detail.
    • delay <number> Time to wait between mousedown and mouseup in milliseconds. Defaults to 0.
    • position <Object> A point to click relative to the top-left corner of element padding box. If not specified, clicks to some visible point of the element.
    • modifiers <Array<”Alt”|”Control”|”Meta”|”Shift”>> Modifier keys to press. Ensures that only these modifiers are pressed during the click, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
    • force <boolean> Whether to bypass the actionability checks. Defaults to false.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise> Promise which resolves when the element matching selector is successfully clicked. The Promise will be rejected if there is no element matching selector.

This method fetches an element with selector, scrolls it into view if needed, and then uses page.mouse to click in the center of the element. If there’s no element matching selector, the method waits until a matching element appears in the DOM. If the element is detached during the actionability checks, the action is retried.

frame.content()

Gets the full HTML contents of the frame, including the doctype.

frame.dblclick(selector[, options])

  • selector <string> A selector to search for element to double click. If there are multiple elements satisfying the selector, the first will be double clicked. See working with selectors for more details.
  • options <Object>
    • button <”left”|”right”|”middle”> Defaults to left.
    • delay <number> Time to wait between mousedown and mouseup in milliseconds. Defaults to 0.
    • position <Object> A point to double click relative to the top-left corner of element padding box. If not specified, double clicks to some visible point of the element.
    • modifiers <Array<”Alt”|”Control”|”Meta”|”Shift”>> Modifier keys to press. Ensures that only these modifiers are pressed during the double click, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
    • force <boolean> Whether to bypass the actionability checks. Defaults to false.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise> Promise which resolves when the element matching selector is successfully double clicked. The Promise will be rejected if there is no element matching selector.

This method fetches an element with selector, scrolls it into view if needed, and then uses page.mouse to double click in the center of the element. If there’s no element matching selector, the method waits until a matching element appears in the DOM. If the element is detached during the actionability checks, the action is retried.

Bear in mind that if the first click of the dblclick() triggers a navigation event, there will be an exception.

NOTE frame.dblclick() dispatches two click events and a single dblclick event.

frame.dispatchEvent(selector, type[, eventInit, options])

The snippet below dispatches the click event on the element. Regardless of the visibility state of the elment, click is dispatched. This is equivalend to calling element.click().

  1. await frame.dispatchEvent('button#submit', 'click');

Under the hood, it creates an instance of an event based on the given type, initializes it with eventInit properties and dispatches it on the element. Events are composed, cancelable and bubble by default.

Since eventInit is event-specific, please refer to the events documentation for the lists of initial properties:

You can also specify JSHandle as the property value if you want live objects to be passed into the event:

  1. // Note you can only create DataTransfer in Chromium and Firefox
  2. const dataTransfer = await frame.evaluateHandle(() => new DataTransfer());
  3. await frame.dispatchEvent('#source', 'dragstart', { dataTransfer });

frame.evaluate(pageFunction[, arg])

If the function passed to the frame.evaluate returns a Promise, then frame.evaluate would wait for the promise to resolve and return its value.

If the function passed to the frame.evaluate returns a non-Serializable value, then frame.evaluate resolves to undefined. DevTools Protocol also supports transferring some additional values that are not serializable by JSON: -0, NaN, Infinity, -Infinity, and bigint literals.

  1. const result = await frame.evaluate(([x, y]) => {
  2.   return Promise.resolve(x * y);
  3. }, [7, 8]);
  4. console.log(result); // prints "56"

A string can also be passed in instead of a function.

  1. console.log(await frame.evaluate('1 + 2')); // prints "3"

ElementHandle instances can be passed as an argument to the frame.evaluate:

  1. const bodyHandle = await frame.$('body');
  2. const html = await frame.evaluate(([body, suffix]) => body.innerHTML + suffix, [bodyHandle, 'hello']);
  3. await bodyHandle.dispose();

frame.evaluateHandle(pageFunction[, arg])

  • pageFunction <function|string> Function to be evaluated in the page context
  • arg <Serializable|JSHandle> Optional argument to pass to pageFunction
  • returns: <Promise<JSHandle>> Promise which resolves to the return value of pageFunction as in-page object (JSHandle)

The only difference between frame.evaluate and frame.evaluateHandle is that frame.evaluateHandle returns in-page object (JSHandle).

If the function, passed to the frame.evaluateHandle, returns a Promise, then frame.evaluateHandle would wait for the promise to resolve and return its value.

  1. const aWindowHandle = await frame.evaluateHandle(() => Promise.resolve(window));
  2. aWindowHandle; // Handle for the window object.

A string can also be passed in instead of a function.

  1. const aHandle = await frame.evaluateHandle('document'); // Handle for the 'document'.

JSHandle instances can be passed as an argument to the frame.evaluateHandle:

  1. const aHandle = await frame.evaluateHandle(() => document.body);
  2. const resultHandle = await frame.evaluateHandle(([body, suffix]) => body.innerHTML + suffix, [aHandle, 'hello']);
  3. console.log(await resultHandle.jsonValue());
  4. await resultHandle.dispose();

frame.fill(selector, value[, options])

  • selector <string> A selector to query page for. See working with selectors for more details.
  • value <string> Value to fill for the <input>, <textarea> or [contenteditable] element.
  • options <Object>
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise>

This method waits for an element matching selector, waits for actionability checks, focuses the element, fills it and triggers an input event after filling. If the element matching selector is not an <input>, <textarea> or [contenteditable] element, this method throws an error. Note that you can pass an empty string to clear the input field.

To send fine-grained keyboard events, use frame.type.

frame.focus(selector[, options])

  • selector <string> A selector of an element to focus. If there are multiple elements satisfying the selector, the first will be focused. See working with selectors for more details.
  • options <Object>
  • returns: <Promise> Promise which resolves when the element matching selector is successfully focused. The promise will be rejected if there is no element matching selector.

This method fetches an element with selector and focuses it. If there’s no element matching selector, the method waits until a matching element appears in the DOM.

frame.frameElement()

  • returns: <Promise<ElementHandle>> Promise that resolves with a frame or iframe element handle which corresponds to this frame.

This is an inverse of elementHandle.contentFrame(). Note that returned handle actually belongs to the parent frame.

This method throws an error if the frame has been detached before frameElement() returns.

  1. const frameElement = await frame.frameElement();
  2. const contentFrame = await frameElement.contentFrame();
  3. console.log(frame === contentFrame);  // -> true

frame.getAttribute(selector, name[, options])

Returns element attribute value.

frame.goto(url[, options])

  • url <string> URL to navigate frame to. The url should include scheme, e.g. https://.
  • options <Object> Navigation parameters which might have the following properties:
  • returns: <Promise<?Response>> Promise which resolves to the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect.

frame.goto will throw an error if:

  • there’s an SSL error (e.g. in case of self-signed certificates).
  • target URL is invalid.
  • the timeout is exceeded during navigation.
  • the remote server does not respond or is unreachable.
  • the main resource failed to load.

frame.goto will not throw an error when any valid HTTP status code is returned by the remote server, including 404 “Not Found” and 500 “Internal Server Error”. The status code for such responses can be retrieved by calling response.status().

NOTE frame.goto either throws an error or returns a main resource response. The only exceptions are navigation to about:blank or navigation to the same URL with a different hash, which would succeed and return null.

NOTE Headless mode doesn’t support navigation to a PDF document. See the upstream issue.

frame.hover(selector[, options])

  • selector <string> A selector to search for element to hover. If there are multiple elements satisfying the selector, the first will be hovered. See working with selectors for more details.
  • options <Object>
    • position <Object> A point to hover relative to the top-left corner of element padding box. If not specified, hovers over some visible point of the element.
    • modifiers <Array<”Alt”|”Control”|”Meta”|”Shift”>> Modifier keys to press. Ensures that only these modifiers are pressed during the hover, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
    • force <boolean> Whether to bypass the actionability checks. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise> Promise which resolves when the element matching selector is successfully hovered. Promise gets rejected if there’s no element matching selector.

This method fetches an element with selector, scrolls it into view if needed, and then uses page.mouse to hover over the center of the element. If there’s no element matching selector, the method waits until a matching element appears in the DOM. If the element is detached during the actionability checks, the action is retried.

frame.innerHTML(selector[, options])

Resolves to the element.innerHTML.

frame.innerText(selector[, options])

Resolves to the element.innerText.

frame.isDetached()

Returns true if the frame has been detached, or false otherwise.

frame.name()

Returns frame’s name attribute as specified in the tag.

If the name is empty, returns the id attribute instead.

NOTE This value is calculated once when the frame is created, and will not update if the attribute is changed later.

frame.parentFrame()

  • returns: <?Frame> Parent frame, if any. Detached frames and main frames return null.

frame.press(selector, key[, options])

  • selector <string> A selector of an element to type into. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
  • key <string> Name of the key to press or a character to generate, such as ArrowLeft or a.
  • options <Object>
    • delay <number> Time to wait between keydown and keyup in milliseconds. Defaults to 0.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise>

key can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the key values can be found here. Examples of the keys are:

F1 - F12, Digit0- Digit9, KeyA- KeyZ, Backquote, Minus, Equal, Backslash, Backspace, Tab, Delete, Escape, ArrowDown, End, Enter, Home, Insert, PageDown, PageUp, ArrayRight, ArrowUp, etc.

Following modification shortcuts are also suported: Shift, Control, Alt, Meta, ShiftLeft.

Holding down Shift will type the text that corresponds to the key in the upper case.

If key is a single character, it is case-sensitive, so the values a and A will generate different respective texts.

Shortcuts such as key: "Control+o" or key: "Control+Shift+T" are supported as well. When speficied with the modifier, modifier is pressed and being held while the subsequent key is being pressed.

frame.selectOption(selector, values[, options])

  • selector <string> A selector to query frame for. See working with selectors for more details.
  • values |Object|Array<ElementHandle>|Array<Object>> Options to select. If the <select> has the multiple attribute, all matching options are selected, otherwise only the first option matching one of the passed options is selected. String values are equivalent to {value:'string'}. Option is considered matching if all specified properties match.
    • value <string> Matches by option.value.
    • label <string> Matches by option.label.
    • index <number> Matches by the index.
  • options <Object>
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise<Array<string>>> An array of option values that have been successfully selected.

Triggers a change and input event once all the provided options have been selected. If there’s no <select> element matching selector, the method throws an error.

  1. // single selection matching the value
  2. frame.selectOption('select#colors', 'blue');
  4. // single selection matching both the value and the label
  5. frame.selectOption('select#colors', { label: 'Blue' });
  7. // multiple selection
  8. frame.selectOption('select#colors', 'red', 'green', 'blue');

frame.setContent(html[, options])

frame.setInputFiles(selector, files[, options])

This method expects selector to point to an input element.

Sets the value of the file input to these file paths or files. If some of the filePaths are relative paths, then they are resolved relative to the current working directory. For empty array, clears the selected files.

frame.textContent(selector[, options])

Resolves to the element.textContent.

frame.title()

frame.type(selector, text[, options])

  • selector <string> A selector of an element to type into. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
  • text <string> A text to type into a focused element.
  • options <Object>
    • delay <number> Time to wait between key presses in milliseconds. Defaults to 0.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise>

Sends a keydown, keypress/input, and keyup event for each character in the text. frame.type can be used to send fine-grained keyboard events. To fill values in form fields, use frame.fill.

To press a special key, like Control or ArrowDown, use keyboard.press.

  1. await frame.type('#mytextarea', 'Hello'); // Types instantly
  2. await frame.type('#mytextarea', 'World', {delay: 100}); // Types slower, like a user

frame.uncheck(selector, [options])

  • selector <string> A selector to search for uncheckbox to check. If there are multiple elements satisfying the selector, the first will be checked. See working with selectors for more details.
  • options <Object>
    • force <boolean> Whether to bypass the actionability checks. Defaults to false.
    • noWaitAfter <boolean> Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to false.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise> Promise which resolves when the element matching selector is successfully unchecked. The Promise will be rejected if there is no element matching selector.

This method fetches an element with selector, if element is not already unchecked, it scrolls it into view if needed, and then uses frame.click to click in the center of the element. If there’s no element matching selector, the method waits until a matching element appears in the DOM. If the element is detached during the actionability checks, the action is retried.

frame.url()

Returns frame’s url.

frame.waitForFunction(pageFunction[, arg, options])

  • pageFunction <function|string> Function to be evaluated in browser context
  • arg <Serializable|JSHandle> Optional argument to pass to pageFunction
  • options <Object> Optional waiting parameters
    • polling <number|”raf”> If polling is 'raf', then pageFunction is constantly executed in requestAnimationFrame callback. If polling is a number, then it is treated as an interval in milliseconds at which the function would be executed. Defaults to raf.
    • timeout <number> maximum time to wait for in milliseconds. Defaults to 30000 (30 seconds). Pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise<JSHandle>> Promise which resolves when the pageFunction returns a truthy value. It resolves to a JSHandle of the truthy value.

The waitForFunction can be used to observe viewport size change:

  1. const { firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
  3. (async () => {
  4.   const browser = await firefox.launch();
  5.   const page = await browser.newPage();
  6.   const watchDog = page.mainFrame().waitForFunction('window.innerWidth < 100');
  7.   page.setViewportSize({width: 50, height: 50});
  8.   await watchDog;
  9.   await browser.close();
  10. })();

To pass an argument from Node.js to the predicate of frame.waitForFunction function:

  1. const selector = '.foo';
  2. await frame.waitForFunction(selector => !!document.querySelector(selector), selector);

frame.waitForLoadState([state[, options]])

This resolves when the frame reaches a required load state, load by default. The navigation must have been committed when this method is called. If current document has already reached the required state, resolves immediately.

  1. await frame.click('button'); // Click triggers navigation.
  2. await frame.waitForLoadState(); // The promise resolves after 'load' event.

frame.waitForNavigation([options])

  • options <Object> Navigation parameters which might have the following properties:
  • returns: <Promise<?Response>> Promise which resolves to the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect. In case of navigation to a different anchor or navigation due to History API usage, the navigation will resolve with null.

This resolves when the frame navigates to a new URL. It is useful for when you run code which will indirectly cause the frame to navigate. Consider this example:

  1. const [response] = await Promise.all([
  2.   frame.waitForNavigation(), // The navigation promise resolves after navigation has finished
  3.   frame.click('a.my-link'), // Clicking the link will indirectly cause a navigation
  4. ]);

NOTE Usage of the History API to change the URL is considered a navigation.

frame.waitForSelector(selector[, options])

  • selector <string> A selector of an element to wait for. See working with selectors for more details.
  • options <Object>
    • state <”attached”|”detached”|”visible”|”hidden”> Defaults to 'visible'. Can be either:
      • 'attached' - wait for element to be present in DOM.
      • 'detached' - wait for element to not be present in DOM.
      • 'visible' - wait for element to have non-empty bounding box and no visibility:hidden. Note that element without any content or with display:none has an empty bounding box and is not considered visible.
      • 'hidden' - wait for element to be either detached from DOM, or have an empty bounding box or visibility:hidden. This is opposite to the 'visible' option.
    • timeout <number> Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout. The default value can be changed by using the browserContext.setDefaultTimeout(timeout) or page.setDefaultTimeout(timeout) methods.
  • returns: <Promise<?ElementHandle>> Promise which resolves when element specified by selector satisfies state option. Resolves to null if waiting for hidden or detached.

Wait for the selector to satisfy state option (either appear/disappear from dom, or become visible/hidden). If at the moment of calling the method selector already satisfies the condition, the method will return immediately. If the selector doesn’t satisfy the condition for the timeout milliseconds, the function will throw.

This method works across navigations:

  1. const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
  3. (async () => {
  4.   const browser = await webkit.launch();
  5.   const page = await browser.newPage();
  6.   let currentURL;
  7.   page.mainFrame()
  8.     .waitForSelector('img')
  9.     .then(() => console.log('First URL with image: ' + currentURL));
  10.   for (currentURL of ['https://example.com', 'https://google.com', 'https://bbc.com']) {
  11.     await page.goto(currentURL);
  12.   }
  13.   await browser.close();
  14. })();

frame.waitForTimeout(timeout)

Returns a promise that resolves after the timeout.

Note that frame.waitForTimeout() should only be used for debugging. Tests using the timer in production are going to be flaky. Use signals such as network events, selectors becoming visible and others instead.