Add new method: "is_online()"

Author: mdmintz

help_docs/method_summary.md

@@ -502,6 +502,8 @@ self.inspect_html()
 
 self.is_valid_url(url)
 
+self.is_online()
+
 self.is_chromium()
 
 self.get_chrome_version()

seleniumbase/fixtures/base_case.py

@@ -7271,6 +7271,11 @@ def is_valid_url(self, url):
         """Return True if the url is a valid url."""
         return page_utils.is_valid_url(url)
 
+    def is_online(self):
+        """Return True if connected to the Internet."""
+        online = self.execute_script("return navigator.onLine;")
+        return online
+
     def is_chromium(self):
         """Return True if the browser is Chrome, Edge, or Opera."""
         self.__check_scope()