These should be URIs, not URI references.

Closes #131

Author: Julian

jsonschema/_format.py

@@ -151,7 +151,7 @@ def is_host_name(instance):
 else:
     @_checks_drafts("uri", raises=ValueError)
     def is_uri(instance):
-        return rfc3987.parse(instance, rule="URI_reference")
+        return rfc3987.parse(instance, rule="URI")
 
 
 try: