Configuration file downloaded 2 times when using configUrl

[anfle]

Q&A (please complete the following information)

• Method of installation: npm
• Swagger-UI version: 3.18.x

Content & configuration

Swagger-UI configuration options:

import SwaggerUI from 'swagger-ui'
import SwaggerUIStandalonePreset from 'swagger-ui/dist/swagger-ui-standalone-preset'

window.onload = function() {
    const ui = SwaggerUI({
        configUrl: '/api/swagger-config.json',
        dom_id: '#swagger-ui',
        presets: [
          SwaggerUI.presets.apis,
          SwaggerUIStandalonePreset
        ],
        plugins: [
          SwaggerUI.plugins.DownloadUrl
        ],
        layout: 'StandaloneLayout',
        filter: true,
        requestInterceptor: function(request) {
            // handle CSRF
            return request;
        },
        responseInterceptor: function (response) {
          // handle json prefix
          return response
        }
    })
})

window.ui = ui

And my swagger-config.json file:

{
  "url": "/swagger-portal.json",
  "filter": true,
  "deepLinking": true,
  "validatorUrl": null
}

How can we help?

My swagger config file (define in configUrl parameter) is downloaded two times (illustrated in the screenshot below).
From the code src/core/index.js and src/core/plugins/configs/spec-actions.js it's normal.
However I think it might be more efficient to check if the requests parameter exists before calling the getConfigByUrl method in the if condition to avoid double downloading.
Maybe I missed something?

Screenshots

[shockey]

Hmm, yeah, this does seem like it's duplicated. Good catch!

[bnasslahsen]

Hi,

Is there any workaround for this issue when we use configUrl ?

[lrozenblyum]

Any ideas for a workaround? onComplete is also called twice which is not nice

[mariem-89]

@shockey,

Is there any workaround for this bug?
It's really annoying to have the swagger-ui loaded twice.

Thank you guys for your help.