updated jwt interceptor to only add auth header for requests to api url

Author: cornflourblue

src/app/_helpers/jwt.interceptor.ts

@@ -2,16 +2,19 @@ import { Injectable } from '@angular/core';
 import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http';
 import { Observable } from 'rxjs';
 
+import { environment } from '@environments/environment';
 import { AuthenticationService } from '@app/_services';
 
 @Injectable()
 export class JwtInterceptor implements HttpInterceptor {
     constructor(private authenticationService: AuthenticationService) { }
 
     intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
-        // add authorization header with jwt token if available
-        let currentUser = this.authenticationService.currentUserValue;
-        if (currentUser && currentUser.token) {
+        // add auth header with jwt if user is logged in and request is to api url
+        const currentUser = this.authenticationService.currentUserValue;
+        const isLoggedIn = currentUser && currentUser.token;
+        const isApiUrl = request.url.startsWith(environment.apiUrl);
+        if (isLoggedIn && isApiUrl) {
             request = request.clone({
                 setHeaders: {
                     Authorization: `Bearer ${currentUser.token}`