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Page.setViewport() method

page.setViewport will resize the page. A lot of websites don't expect phones to change size, so you should set the viewport before navigating to the page.

In the case of multiple pages in a single browser, each page can have its own viewport size.

Signature:​

class Page {
  abstract setViewport(viewport: Viewport): Promise<void>;
}

Parameters​

Parameter

Type

Description

viewport

Viewport

Returns:

Promise<void>

Remarks​

NOTE: in certain cases, setting viewport will reload the page in order to set the isMobile or hasTouch properties.

Example​

const page = await browser.newPage();
await page.setViewport({
  width: 640,
  height: 480,
  deviceScaleFactor: 1,
});
await page.goto('https://example.com');