Function _supportsShadowDom

src/cdk/platform/features/shadow-dom.ts:12–19

()

/** Checks whether the user's browser support Shadow DOM. */
export function _supportsShadowDom(): boolean {
  if (shadowDomIsSupported == null) {
    const head = typeof document !== 'undefined' ? document.head : null;
    shadowDomIsSupported = !!(head && ((head as any).createShadowRoot || head.attachShadow));
  }

  return shadowDomIsSupported;
}

/** Gets the shadow root of an element, if supported and the element is inside the Shadow DOM. */
export function _getShadowRoot(element: HTMLElement): ShadowRoot | null {