Swagger UI set scheme to window location protocol

swagger-ui-config.js

window.onload = function() {
  fetch('./swagger.json')
  .then(function(response) {
    response.json()
    .then(function(json) {
      json.schemes[0] = window.location.protocol.slice(0, -1)
      json.host = window.location.host

      const ui = SwaggerUIBundle({
        spec: json,
        dom_id: '#swagger-ui',
        deepLinking: true,
        presets: [
          SwaggerUIBundle.presets.apis
        ],
        plugins: [
          SwaggerUIBundle.plugins.DownloadUrl
        ]
      })

      window.ui = ui
    })
  })
}