javascript - 尝试使用 ngx-cookie 获取 cookie，但如果我 F5 页面，则为 'document is not defined'

Question

发生了一些奇怪的事情。看来文档对象可能不存在。当我保存代码并单击返回浏览器时，它工作正常。为什么按 F5 后文档就消失了？

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

An unhandled exception occurred while processing the request. NodeInvocationException: Uncaught (in promise): ReferenceError: document is not defined ReferenceError: document is not defined at CookieService.get [as cookieString] (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10652:13) at CookieService._cookieReader (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10751:40) at CookieService.get (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10670:21) at new HomeComponent (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:16948:36) at createClass (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:21881:26) at createDirectiveInstance (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:21699:37) at createViewNodes (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23127:49) at createRootView (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23022:5) at Object.createProdRootView [as createRootView] (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23707:12) at ComponentFactory_.module.exports.ComponentFactory_.create (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:20813:46) Error: Uncaught (in promise): ReferenceError: document is not defined ReferenceError: document is not defined at CookieService.get [as cookieString] (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10652:13) at CookieService._cookieReader (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10751:40) at CookieService.get (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10670:21) at new HomeComponent (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:16948:36) at createClass (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:21881:26) at createDirectiveInstance (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:21699:37) at createViewNodes (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23127:49) at createRootView (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23022:5) at Object.createProdRootView [as createRootView] (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:23707:12) at 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) at C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:86213:17 at 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) at ZoneDelegate.module.exports.ZoneDelegate.invokeTask (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:85818:36) at Zone.module.exports.Zone.runTask (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:85586:47) at drainMicroTaskQueue (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\vendor.js:85979:35) at at process._tickCallback (internal/process/next_tick.js:188:7) Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance+d__7.MoveNext()

堆栈查询 Cookie header

NodeInvocationException: Uncaught (in promise): ReferenceError: document is not defined ReferenceError: document is not defined at CookieService.get [as cookieString] (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10652:13) at CookieService._cookieReader (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10751:40) at CookieService.get (C:\Users\Matt_Herb\Downloads\IbewSurveyTemp\IbewSurveyTemp\ClientApp\dist\main-server.js:10670:21) at new

Answer 1

无法在服务器端访问文档。 cookie管理必须在浏览器端。