Function isClientRenderModeEnabled

packages/core/src/hydration/api.ts:176–181

* Checks whether the `RenderMode.Client` was defined for the current route.

(doc: Document)

 * Checks whether the `RenderMode.Client` was defined for the current route.
 */
function isClientRenderModeEnabled(doc: Document): boolean {
  return (
    (typeof ngServerMode === 'undefined' || !ngServerMode) &&
    doc.body.hasAttribute(CLIENT_RENDER_MODE_FLAG)
  );
}

/**
 * Returns a set of providers required to setup hydration support