neo4j - 请求选项 "withCredentials"- Angular2

我在使用请求连接到 Angular2 组件中的 Neo4j 时遇到了 CORS 问题:

Response to preflight request doesn't pass access control check. A wildcard '*' cannot be used in the 'Access-Control-Allow-Origin' header when the credentials flag is true. Origin 'http://localhost:8080' is therefore not allowed access. The credentials mode of an XMLHttpRequest is controlled by the withCredentials attribute

如何使用请求(Typescript)设置 withCredentials: false？我假设这将解决问题。但是请求 ts 文件没有在其 withCredentials 对象中列出 CoreOptions。 Neo4j-Typescript 包也没有在它的 Typescript 定义中包含它。

最佳答案

你可以通过扩展 BrowserXhr 类来做到这一点:

@Injectable()
export class CustomBrowserXhr extends BrowserXhr {
  constructor() {}
  build(): any {
    let xhr = super.build();
    xhr.withCredentials = false;
    return <any>(xhr);
  }
}

并使用扩展覆盖 BrowserXhr 提供程序:

bootstrap(AppComponent, [
  HTTP_PROVIDERS,
  provide(BrowserXhr, { useClass: CustomBrowserXhr })
]);

关于neo4j - 请求选项 "withCredentials"- Angular2，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/36677794/