Merge pull request #641 from HTTPArchive/lighthouse

Fixed the lighthouse user agent string

Author: Mike Kozicki

internal/devtools_browser.py

@@ -874,7 +874,7 @@ def run_lighthouse_test(self, task):
                 command.extend(['--screenEmulation.disabled'])
             if 'user_agent_string' in self.job:
                 sanitized_user_agent = re.sub(r'[^a-zA-Z0-9_\-.;:/()\[\] ]+', '', self.job['user_agent_string'])
-                command.append('--chrome-flags="--user-agent=\'{0}\'"'.format(sanitized_user_agent))
+                command.extend(['--emulatedUserAgent', "'" + sanitized_user_agent + "'"])
             if len(task['block']):
                 for pattern in task['block']:
                     pattern = "'" + pattern.replace("'", "'\\''") + "'"