Merge pull request manfredsteyer#371 from jeroenheijmans/fix/basic-auth-header

Change 'Authentication' to 'Authorization'

Author: manfredsteyer

projects/lib/src/oauth-service.ts

@@ -640,8 +640,8 @@ export class OAuthService extends AuthConfig {
             if (this.useHttpBasicAuthForPasswordFlow) {
                 const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);
                 headers = headers.set(
-                    'Authentication',
-                    'BASIC ' + header);
+                    'Authorization',
+                    'Basic ' + header);
             }
 
             if (!this.useHttpBasicAuthForPasswordFlow) {