diff --git a/rest_framework/utils/html.py b/rest_framework/utils/html.py
index d773952dc..e825bdbeb 100644
--- a/rest_framework/utils/html.py
+++ b/rest_framework/utils/html.py
@@ -49,6 +49,12 @@ def parse_html_list(dictionary, prefix=''):
     for field, value in dictionary.items():
         match = regex.match(field)
         if not match:
+            try:
+                normalized_value = json.loads(value)
+            except ValueError:
+                continue
+            if field == prefix and isinstance(normalized_value, list):
+                return normalized_value
             continue
         index, key = match.groups()
         index = int(index)