[Solved] Angular Error: Http failure response for 0 Unknown Error

I am trying to list cities and just print them in console but getting errors.

I added cors in program.cs:

builder.Services.AddCors();
app.UseCors(m => m.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod());

Then in my service.ts:

getAllCities(): Observable<string[]>{
    return this.http.get<string[]>('http://localhost:5133/api/city');
}

and in the add-property.ts

this.housingService.getAllCities().subscribe(data => {
    console.log(data);
})

I am getting error:

HttpErrorResponse
error
: 
ProgressEvent {isTrusted: true, lengthComputable: false, loaded: 0, total: 0, type: 'error', …}
headers
: 
HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, headers: Map(0)}
message
: 
"Http failure response for http://localhost:5133/api/city: 0 Unknown Error"
name
: 
"HttpErrorResponse"
ok
: 
false
status
: 
0
statusText
: 
"Unknown Error"
url
: 
"http://localhost:5133/api/city"