Ensure script_json_encode allows arrays by default

tests/test_util.py

@@ -273,6 +273,10 @@ def test_script_json_encode(self):
         rv = "<a ng-data='%s'></a>" % script_json_encode({'x': ["foo", "bar", "baz'"]})
         assert rv == '<a ng-data=\'{"x": ["foo", "bar", "baz\\u0027"]}\'></a>'
 
+    def test_script_json_encode_array(self):
+        rv = "<a ng-data='%s'></a>" % script_json_encode(['1', 2, 5])
+        assert rv == '<a ng-data=\'["1", 2, 5]\'></a>', rv
+
 
 class TestFilesUtils(object):
     def test_safe_filename(self):

tg/util/html.py

@@ -1,7 +1,11 @@
+from ..jsonify import JSONEncoder
 from ..jsonify import encode as json_encode
 
 
-def script_json_encode(obj, **kwargs):
+_script_json_encoder = JSONEncoder(isodates=True, allow_lists=True)
+
+
+def script_json_encode(obj, encoder=_script_json_encoder, **kwargs):
     """Works exactly like :func:`tg.jsonify.encode` but is safe
     for use in ``<script>`` tags.
 
@@ -15,7 +19,7 @@ def script_json_encode(obj, **kwargs):
     notable exception of double quoted attributes.  In that case single
     quote your attributes or HTML escape it in addition.
     """
-    rv = json_encode(obj, **kwargs) \
+    rv = json_encode(obj, encoder=encoder, **kwargs) \
         .replace('<', '\\u003c') \
         .replace('>', '\\u003e') \
         .replace('&', '\\u0026') \