Function resetPage

build-system/tasks/visual-diff/browser.js:133–147

* Resets the size of a tab and loads about:blank. * * @param {!puppeteer.Page} page a Puppeteer control browser tab/page. * @param {?puppeteer.Viewport} viewport optional viewport size object with * numeric fields `width` and `height`. * @return {Promise }

(page, viewport = null)

 * @return {Promise<void>}
 */
async function resetPage(page, viewport = null) {
  const width = viewport ? viewport.width : VIEWPORT_WIDTH;
  const height = viewport ? viewport.height : VIEWPORT_HEIGHT;

  log(
    'verbose',
    'Resetting tab to',
    yellow('about:blank'),
    'with size',
    yellow(`${width}×${height}`)
  );

  await page.goto('about:blank');
  await page.setViewport({width, height});
}

module.exports = {
  locateChromeExecutablePath,