It turned out in my case that the exception was from another call (the url for 'properties' call was correct), however I found the attribute "url_with_id", which solved the problem, I'd assume it is the right way to construct object specific url.
As the title, when requesting node's properties the call to "generate_url" has explicit "with_id=false" (node.js line 287 in "getView" function), which results in the generated url not to have this node's ID (just it's parent).
What is the purpose of 'properties' on a node request, shouldn't it have its ID?
ID is required to fetch the properties of any object.
In this particular scenario, we have set the urlRoot property of the backbone model, so when we fetch the data, backbone will append the id to the urlRoot if it's available in the model.
We've used that for listing the properties of the objects of same/related type in the properties tab for any collection node (i.e. Databases, Schemas, Tables, Roles, and many more)
