The joinBase helper is used to create urls within your application for static resources, such as images. An example usage:

{{joinBase("hello/", name, ".png")}}

Where name is a scope value, this might return http://example.com/app/hello/world.png if the application is http://example.com/app.

The url to join with is determined by the following factors:

• If attempting to load a relative url, such as {{joinBase("../foo.png")}} and using StealJS the template’s address will be used as a reference to look up the location.
• If the can.baseURL string is set, this will be used.
• If the System.baseURL is set, this will be used.
• Lastly we fall back to location.pathname.