do not load javascript if javscript is disabled

Author: xi

bootstrap4/templatetags/bootstrap4.py

@@ -157,7 +157,10 @@ def bootstrap_javascript_url():
 
         {% bootstrap_javascript_url %}
     """
-    return javascript_url()
+    if not get_bootstrap_setting('use_javascript'):
+        return None
+    else:
+        return javascript_url()
 
 
 @register.simple_tag
@@ -311,6 +314,9 @@ def bootstrap_javascript(jquery='falsy'):
         {% bootstrap_javascript jquery="slim" %}
     """
 
+    if not get_bootstrap_setting('use_javascript'):
+        return None
+
     # List of JS tags to include
     javascript_tags = []