Deal with Shadow DOM in Selenium

 

From

https://medium.com/rate-engineering/a-guide-to-working-with-shadow-dom-using-selenium-b124992559f

async function getExtShadowRoot() {  let shadowHost;  await (shadowHost = driver.findElement(By.css(CSS_SHADOW_HOST)));  return driver.executeScript("return arguments[0].shadowRoot",                                                                 shadowHost);}
async function findShadowDomElement(shadowDomElement) {  let shadowRoot;  let element;  await (shadowRoot = getExtShadowRoot());  await shadowRoot.then(async (result) => {    await (element = result.findElement(By.css(shadowDomElement)));  });
  
  return element;}