Clarify that the JavaScript singleton is available in official templates

development/compiling/compiling_for_web.rst

@@ -39,7 +39,8 @@ either ``release`` for a release build or ``release_debug`` for a debug build::
     scons platform=javascript tools=no target=release_debug
 
 By default, the :ref:`JavaScript singleton <doc_javascript_eval>` will be built
-into the engine. Since ``eval()`` calls can be a security concern, the
+into the engine. Official export templates also have the JavaScript singleton
+enabled. Since ``eval()`` calls can be a security concern, the
 ``javascript_eval`` option can be used to build without the singleton::
 
     scons platform=javascript tools=no target=release javascript_eval=no

getting_started/workflow/export/exporting_for_web.rst

@@ -213,9 +213,10 @@ returned by ``eval()`` under certain circumstances:
 
 Any other JavaScript value is returned as ``null``.
 
-HTML5 export templates may be built without support for the singleton. With such
-templates, and on platforms other than HTML5, calling ``JavaScript.eval`` will
-also return ``null``.  The availability of the singleton can be checked with the
+HTML5 export templates may be :ref:`built <doc_compiling_for_web>` without
+support for the singleton to improve security. With such templates, and on
+platforms other than HTML5, calling ``JavaScript.eval`` will also return
+``null``.  The availability of the singleton can be checked with the
 ``JavaScript`` :ref:`feature tag <doc_feature_tags>`::
 
     func my_func3():