By default, the template URL is restricted to the same domain and protocol as the application document. This is done by calling $sce.getTrustedResourceUrl on it. To load templates from other domains or protocols you may either whitelist them or wrap them as trusted values. Refer to Angular's Strict Contextual Escaping.
使用ng-include引入的檔案必須是同一個網域下，所以想要實現的可能需要另闢蹊徑了
預設是同源策略，如果你想載入其他不在同一個網域的資源，你需要了解 $sce，設定白名單
這是官網一段描述