Move require 'json/ld/preloaded' until after important class variables have been defined.

Author: gkellogg

lib/json/ld/context.rb

@@ -5,13 +5,6 @@
 require 'set'
 require 'rdf/util/cache'
 
-begin
-  # Attempt to load this to avoid unnecessary context fetches
-  require 'json/ld/preloaded'
-rescue LoadError
-  # Silently allow this to fail
-end
-
 module JSON::LD
   class Context
     include Utils
@@ -50,6 +43,13 @@ def alias_preloaded(a, url)
       end
     end
 
+    begin
+      # Attempt to load this to avoid unnecessary context fetches
+      require 'json/ld/preloaded'
+    rescue LoadError
+      # Silently allow this to fail
+    end
+
     # The base.
     #
     # @return [RDF::URI] Current base IRI, used for expanding relative IRIs.