Angular httpClient get response using authorization Bearer Unknown Error



public welcome(token: any){
    let tokenString = "Bearer "+token
    console.log("tokenString is: "+tokenString)
    let header = new  HttpHeaders().set("Authorization",tokenString);
    const requestOptions = {  headers: header};  
    return this.httpClient.get('http://localhost:8191/api/',{
      responseType: 'text' as 'json',
      headers: header

WebPage Console:

tokenString is: Bearer eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJqYXZhdGVjaGllIiwiZXhwIjoxNjIzMTMyNzc5LCJpYXQiOjE2MjMwOTY3Nzl9.h6aw8VBFHXWJQ5R2jRyn0MUqbe4rT3RvUCsELfcKHSU

Access to XMLHttpRequest at ‘http://localhost:8191/api/’ from origin ‘http://localhost:4200’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status.

headers: HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, headers: Map(0)}
message: "Http failure response for http://localhost:8191/api/: 0 Unknown Error"
name: "HttpErrorResponse"
ok: false
status: 0
statusText: "Unknown Error"
url: "http://localhost:8191/api/"

Controller Postman request is working
enter image description here

Source: Angular Questions

Categorized as angular, jwt, node.js, typescript Tagged , , ,


To solve the CORS problem, you have 2 approaches 1. Enable CORS on your server or 2. Proxy your request by creating a file named proxy.conf.json like this:

"/api": {
  "target": "http://localhost:8191/",
  "changeOrigin": true


And make the call like this this.httpClient.get(‘/api/’,…)

Ransom Barrows

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