title: Error SEC7120: [CORS] The origin 'http://localhost:4200' did not find 'http://localhost:4200' in the Access-Control-Allow-Origin response
body: <p>Actually I am trying to connect an Angular app with my Maven-Jersey-webapp(implements Rest Services concept) and getting this error.</p>
  
  <p>More Details:
  I am using Oracle10g XE Database
  Eclipse IDE for maven Project(<a href="http://localhost:8080/MavenProject" rel="nofollow noreferrer">http://localhost:8080/MavenProject</a>)
  Angular CLI(<a href="http://localhost:4200/" rel="nofollow noreferrer">http://localhost:4200/</a>)</p>
  
  <p>I want to retrieve data from database(Stored in students table) and then display that data in Angular App in a Table
  my jersey project returns the table data in JSON and XML format(Running Successfully)</p>
  
  <p><a href="https://i.stack.imgur.com/zuouS.png" rel="nofollow noreferrer">retrieving student table data in JSON format using Maven-jersey-webapp implementing rest</a></p>
  
  <p><a href="https://i.stack.imgur.com/Enemu.png" rel="nofollow noreferrer">angular code making get request using HttpClient </a></p>
  
  <p><a href="https://i.stack.imgur.com/uEO9C.png" rel="nofollow noreferrer">error which i get while making get request</a></p>