Method _containsAttributes

packages/platform-browser/src/browser/meta.ts:200–204

(tag: MetaDefinition, elem: HTMLMetaElement)

  }

  private _containsAttributes(tag: MetaDefinition, elem: HTMLMetaElement): boolean {
    return Object.keys(tag).every(
      (key: string) => elem.getAttribute(this._getMetaKeyMap(key)) === tag[key],
    );
  }

  private _getMetaKeyMap(prop: string): string {
    return META_KEYS_MAP[prop] || prop;