swagger-config is loaded twice

[lrozenblyum]

Describe the bug
swagger-config url is loaded twice.
Thus onComplete callback is also called twice which makes it harder to customize the UI.

To Reproduce
springdoc-openapi 1.3.9

You may check the online demo:
https://springdoc-openapi-test-app1-exhausted-civet.eu-de.mybluemix.net/swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config

Expected behavior

• swagger-config should be loaded just once

Screenshots

[bnasslahsen]

@lrozenblyum,

Duplicate of #349, #545.
This is a bug on the swagger-ui, not in the springdoc-openapi:
swagger-api/swagger-ui#4825

[bnasslahsen]

@lrozenblyum,

Starting from v1.4.1, the following properties can be used to prevent the load of the swagger-config twice.
Please note this properties works only in the case where there is no groups (no multiple urls and no configUrl set on the swagger-ui):

• If your REST APIs, are not using OAuth2:

springdoc.swagger-ui.display-query-params-without-oauth2=true

• If your REST APIs, are using OAuth2:

springdoc.swagger-ui.display-query-params=true

[lrozenblyum]

Thanks for sharing! @bnasslahsen
As a matter of fact we're using groups (for versioning of API)...