References to remote files not supported?

When I use the following fragment at http://editor.swagger.io/ I get a semantic error: $ref paths must begin with '#/'

{
   "openapi":"3.0.0",
   "info":{
      "description":"This is a test API definition",
      "version":"2017.3",
      "title":"API2 test",
      "termsOfService":"http://swagger.io/terms/"
   },
   "servers":[
      {
         "url":"http://test.lokalhost/myapi2/",
         "description":"This environment"
      }
   ],
   "paths":{
      "/myobjects":{
         "$ref":"http://example.com/myobjects.swagger.json"
      }
   }
}

Are references to remote files no longer supported? Maybe the editor does not support them but that does not make them a semantic error?

[carlocaprini]

I am also still experiencing this issue both while in swagger editor and in the swagger hub and trying to use an absolute url (https://....).

Semantic error at paths./app.post.requestBody.content.application/json.schema.$ref
$ref paths must begin with `#/`

---

EDIT:

I was actually writing my url with the wrong format: giving for granted that the url to the remote file is correct, the same structure to the model of the file should be reproduced (I was simply copying and pasting from other answers). In my case, this did the trick. https://<link to yaml fil>#/components/schemas/<model name>

[webron]

@fredwangwang checking the original definition, the issue is not reproduced. If you are able to reproduce the issue, it may be slightly different. Please make sure you’re using the latest version of the Editor. If you’re using the latest and can reproduce it, please file a new issue following the issue template.