Allow relative urls for Api urls (e.g. Json Data Provider)

[robertjf]

Currently to retrieve data from a custom Api controller we need to provide the full url - for example:

https://localhost:44340/umbraco/backoffice/lsc/crm/therapists

It would be useful to be able to provide a domain agnostic url mapped to the current domain, e.g.:

/umbraco/backoffice/lsc/crm/therapists

Which would be mapped to the domain that Umbraco is running from.

In addition, currently if the ApiController inherits from UmbracoAuthorisedApiController, the data cannot be retrieved. I had to open the controller endpoint above up and remove the authorization in order for Contentment to retrieve it.

[leekelleher]

I think this is the same question as #92. 😊

My reply on there... #92 (comment)

[robertjf]

Thanks @leekelleher - that will do :)