Update serve.py

Author: ChrisJefferson

nikola/plugins/command/serve.py

@@ -140,11 +140,11 @@ def _execute(self, options, args):
                 # Some browsers fail to load 0.0.0.0 (Issue #2755)
                 if sa[0] == '0.0.0.0':
                     server_url = "http://127.0.0.1:{1}/".format(*sa)
-                self.logger.info("Opening {0} in the default web browser...".format(server_url))
-                pid = os.fork()
-                if pid == 0:
+                if getattr(webbrowser.get(), name, "") == "www-browser":
+                    self.logger.info("Unable to open web browser, as Python could only find a terminal browser...")
+                else:
+                    self.logger.info("Opening {0} in the default web browser...".format(server_url))
                     webbrowser.open(server_url)
-                    sys.exit(0)
             if options['detach']:
                 self.detached = True
                 OurHTTPRequestHandler.quiet = True