index.html.js

//...
window.swaggerUi = new SwaggerUi({
  url: url,
  dom_id: "swagger-ui-container",
  authorizations: {
    someName: function() {
      // This function will get called /before/ each request
      // ... UNLESS you have a 'security' tag in the swagger.json file, in which case you must add 'someName' to the list of auths.
      console.log('explore the request object...',this) // Take a look in the console tab to see what's available.
      this.headers['x-swagger'] = 'value'; // Example header
      return true; // there is a bug, fixed but not in develop_2.0 where returning true will only process _one_ interceptor, you can leave this if it's your only interceptor and when the fix is in, it'll work as expected
    }
  }
// ...........