在使用 Angular 6 的 IE11 上使用简单的 GET/POST 时，我遇到了奇怪的问题 - Symbol(rxSubscriber) 未定义。 Angular 5 上也出现同样的问题。不幸的是升级没有帮助。 这段代码在 Chrome 和 Firefox 上运行良好，但在 IE 上我收到如下错误。更有趣的是，当 ng 在 IE11 上服务和运行时，相同的代码也可以很好地工作。 Angular 在 ASP .NET MVC View 中继承，如下所示。此外，polyfills 未注释，因为它应该在 IE 上工作。应用程序是.NET WebForms/.NET MVC/Angular 的组合。有什么解决办法吗？
ERROR TypeError: Invalid calling object
"ERROR"
{
[functions]: ,
__proto__: {
[functions]: ,
__proto__: { },
message: "",
name: "TypeError",
Symbol(rxSubscriber)_g.85rjwpn14tf: undefined
},
description: "Invalid calling object",
message: "Invalid calling object",
name: "TypeError",
number: -2147418113,
stack: "TypeError: Invalid calling object
at scheduleTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:9279:13)
at ZoneDelegate.prototype.scheduleTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:6722:21)
at DELEGATE_ZS.onScheduleTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:6612:13)
at ZoneDelegate.prototype.scheduleTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:6716:17)
at Zone.prototype.scheduleTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:6547:17)
at Zone.prototype.scheduleMacroTask (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:6570:13)
at scheduleMacroTaskWithCurrentZone (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:7429:5)
at Anonymous function (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:9316:17)
at proto[name] (http://localhost:60646/Angular-Test/dist/Angular-Test/polyfills.js:7709:17",
Symbol(rxSubscriber)_g.85rjwpn14tf: undefined
}
我的代码如下所示:
Index.cshtml
@{
Layout = "~/Views/Shared/_Layout.cshtml";
string virtualPathDirectory = !string.IsNullOrEmpty(System.Configuration.ConfigurationManager.AppSettings.Get("VirtualDirectoryPath")) ? System.Configuration.ConfigurationManager.AppSettings.Get("VirtualDirectoryPath") : string.Empty;
}
@section head {
<base href="@virtualPathDirectory/" />
}
<div>
<app-root></app-root>
</div>
@section scripts {
}
_Layout.cshtml
@using System.Text.RegularExpressions
@using System.Web.Optimization
@{
string virtualPathDirectory = !string.IsNullOrEmpty(System.Configuration.ConfigurationManager.AppSettings.Get("VirtualDirectoryPath")) ? System.Configuration.ConfigurationManager.AppSettings.Get("VirtualDirectoryPath") : string.Empty;
}
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
@RenderSection("head", required: false)
</head>
<body>
@RenderBody()
<script type="text/javascript" src="@virtualPathDirectory/bootstrap/js/plugins/pace/pace.min.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/runtime.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/polyfills.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/main.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/vendor.js"></script>
@RenderSection("scripts", required: false)
</body>
</html>
app.module.ts
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { AppComponent } from './app.component';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
HttpClientModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
app.component.ts
import { Component } from '@angular/core';
import { TestService } from './test.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
constructor(private TestService: TestService) { }
ngOnInit() {
this.TestService.GetUser().subscribe(user => this.User = user);
}
User: User = new User();
}
export class User {
id: number;
name: string;
username: string;
email: string;
address: Address;
phone: string;
website: string;
company: Company;
}
export class Address {
street: string;
suite: string;
city: string;
zipcode: string;
geo: Geo;
}
export class Geo {
lat: string;
lng: string;
}
export class Company {
name: string;
catchPhrase: string;
bs: string;
}
app.component.html
ID: {{ User.id }}<br />
name: {{ User.name }}<br />
username: {{ User.username }}
test.service.ts
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class TestService {
constructor(private http: HttpClient) { }
GetUser(): Observable<User> {
return this.http.get<User>('https://jsonplaceholder.typicode.com/users/1').pipe();
}
}
export class User {
id: number;
name: string;
username: string;
email: string;
address: Address;
phone: string;
website: string;
company: Company;
}
export class Address {
street: string;
suite: string;
city: string;
zipcode: string;
geo: Geo;
}
export class Geo {
lat: string;
lng: string;
}
export class Company {
name: string;
catchPhrase: string;
bs: string;
}
最佳答案
好的，我发现一个问题。正如我最初认为的那样，问题与 .NET WebForms/.NET MVC/Angular 组合无关。忘记了我将pace.min.js放在Angular脚本之前，这就是问题的根源。当我在 Angular 问题消失后移动这个脚本时。我通过在 IE11 上的 Angular 内部调试 zone.js 来跟踪它，并得到 IE11 控制台中发生 2 个相同错误的提示。看起来pace.js与zone.js冲突，因为所有XHR(Angular重建对XHR的GET/POST请求)都失败了。不知道为什么它在 Chrome 或 Firefox 中可以正常工作，但是如果您在 Angular 脚本之前的任何地方使用pace.js，请考虑将其移到它们之后，如下所示:
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/runtime.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/polyfills.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/main.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/Angular-Test/dist/Angular-Test/vendor.js"></script>
<script type="text/javascript" src="@virtualPathDirectory/bootstrap/js/plugins/pace/pace.min.js"></script>
关于asp.net - Angular 6 - IE11 上的 GET/POST 问题 - 符号(rxSubscriber)未定义，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52038123/