Issue 6877 - Only parse headers in the first line of the filter list

abp/filters/rpy.py

Index: abp/filters/rpy.py
===================================================================
--- a/abp/filters/rpy.py
+++ b/abp/filters/rpy.py
@@ -67,27 +67,29 @@
     if isinstance(data, tuple):
         return tuple(strings2utf8(v) for v in data)
     if isinstance(data, type('')):  # Python 2/3 compatible way of
                                     # saying "unicode string".
         return data.encode('utf-8')
     return data
 
 
-def line2dict(text):
+def line2dict(text, mode='body'):
     """Convert a filterlist line to a dictionary.
 
     All strings in the output dictionary will be UTF8 byte strings. This is
     necessary to prevent unicode encoding errors in rPython conversion layer.
 
     Parameters
     ----------
     text: str
         The filter text we want to parse
+    mode: str
+        Parsing mode (see `abp.filters.parser.parse_line`).
 
     Returns
     -------
     dict
         With the parsing results and all strings converted to utf8 byte
         strings.
 
     """
-    return strings2utf8(tuple2dict(parse_line(text)))
+    return strings2utf8(tuple2dict(parse_line(text, mode)))