Redirect mercury-parser.js stderr to stdout. Moreover, if an error occurs while parsing a link from an RSS feed we should report the link that raised the error, not the URL of the parent feed

platypush/backend/http/request/rss/__init__.py

@@ -146,7 +146,7 @@ class RssUpdates(HttpRequest):
                         break
             except Exception as e:
                 self.logger.warning('Exception encountered while parsing RSS ' +
-                                    'RSS feed {}: {}'.format(self.url, str(e)))
+                                    'RSS feed {}: {}'.format(entry.link, str(e)))
                 self.logger.exception(e)
 
         source_record.last_updated_at = parse_start_time

platypush/plugins/http/webpage/__init__.py

@@ -55,7 +55,7 @@ class HttpWebpagePlugin(Plugin):
         """
 
         self.logger.info('Parsing URL {}'.format(url))
-        parser = subprocess.Popen(['node', self._mercury_script, url], stdout=subprocess.PIPE)
+        parser = subprocess.Popen(['node', self._mercury_script, url], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
         response = parser.stdout.read().decode()
 
         try: