Police shrinking of table sizes

Author: Lukasa

h2/connection.py

@@ -1887,6 +1887,12 @@ def _local_settings_acked(self):
             setting = changes[SettingCodes.MAX_FRAME_SIZE]
             self.max_inbound_frame_size = setting.new_value
 
+        if SettingCodes.HEADER_TABLE_SIZE in changes:
+            setting = changes[SettingCodes.HEADER_TABLE_SIZE]
+            # This is safe across all hpack versions: some versions just won't
+            # respect it.
+            self.decoder.max_allowed_table_size = setting.new_value
+
         return changes
 
     def _stream_id_is_outbound(self, stream_id):