Cant load swagger file in Nest app running with url prefix

[mo4islona]

We should load swagger from relative url because nest application could be proxied with some path prefix by some server like NGINX behind.

For example, we have Nest app with simple /docs/ route. And some SPA application on same domain. We will configure NGINX like

location /api {
   // upstream to Nest app
}

location {
 // route everything didnt match /api prefix to static files
}

In these cause a broken link swagger.json because it will be generated from the root

And these why all static files are loaded in original SwaggerModule

<script src="./swagger-ui-bundle.js"> </script>
<script src="./swagger-ui-standalone-preset.js"> </script>
<script src="./swagger-ui-init.js"> </script>