Question

有些奇怪的事情正在发生。似乎文档对象可能不存在。当我只保存代码并单击返回浏览器时，它工作正常。当我按F5时，为什么文件会消失？

 let x = this.cookieService.get("UserID");
    console.log("x= " + x);

处理请求时发生未处理的异常。 NodeInvocationException：Uncaught（在promise中）：ReferenceError：未定义文档 ReferenceError：未定义文档在CookieService.get [as cookieString]（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10652：13）在CookieService._cookieReader（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10751：40）在CookieService.get（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10670：21）在新的HomeComponent（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：16948：36）在createClass（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：21881：26）在createDirectiveInstance（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：21699：37）在createViewNodes（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23127：49）在createRootView（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23022：5）在Object.createProdRootView [as createRootView]（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23707：12）在ComponentFactory_.module.exports.ComponentFactory_.create（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：20813：46）错误：未捕获（在承诺中）：ReferenceError：未定义文档 ReferenceError：未定义文档在CookieService.get [as cookieString]（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10652：13）在CookieService._cookieReader（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10751：40）在CookieService.get（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10670：21）在新的HomeComponent（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：16948：36）在createClass（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：21881：26）在createDirectiveInstance（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：21699：37）在createViewNodes（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23127：49）在createRootView（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23022：5）在Object.createProdRootView [as createRootView]（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：23707：12）在ComponentFactory_.module.exports.ComponentFactory_.create（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：20813：46） at resolvePromise（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：86165：31） at resolvePromise（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：86136：17）在C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：86213：17 在ZoneDelegate.module.exports.ZoneDelegate.invokeTask（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：85819：31） at Object.onInvokeTask（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：14821：37）在ZoneDelegate.module.exports.ZoneDelegate.invokeTask（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：85818：36）在Zone.module.exports.Zone.runTask（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：85586：47）在drainMicroTaskQueue（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ vendor.js：85979：35）在 at process._tickCallback（internal / process / next_tick.js：188：7） Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance + d__7.MoveNext（）

堆栈查询Cookie标头

NodeInvocationException：Uncaught（在promise中）：ReferenceError：文档未定义ReferenceError：文档未在CookieService.get [as cookieString]中定义（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main -server.js：10652：13）在CookieService._cookieReader（C：\ Users \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10751：40）处于CookieService.get（C：\ Users） \ Matt_Herb \ Downloads \ IbewSurveyTemp \ IbewSurveyTemp \ ClientApp \ dist \ main-server.js：10670：21）at new

Answer 1

服务器端无法访问文档。 cookie管理必须是浏览器端。

Answer 2

在 app.server.module.ts 文件中使用以下代码

  providers: [
    { provide: CookieService, useClass: CookieBackendService },
  ]

尝试使用ngx-cookie获取cookie，但未定义＆＃39;文档＆＃39;如果我F5页面

2 个答案: