Added help writing HTML in the cave editing form. Made the HTML previews optional

core/views/editor_helpers.py

@@ -134,10 +134,10 @@ class NewWebImageForm(forms.Form):
 class HTMLarea(forms.Textarea):
     template_name = "widgets/HTMLarea.html"
     def __init__(self, *args, **kwargs):
-        self.iframeattrs = kwargs.pop('iframeattrs')
+        self.preview = kwargs.pop('preview', False)
         super(forms.Textarea, self).__init__(*args, **kwargs)
     def get_context(self, name, value, attrs):
         c = super(forms.Textarea, self).get_context(name, value, attrs)
-        c["iframe"] = {"attrs": self.iframeattrs}
+        c["preview"] = self.preview
         return c