[ci] Added about:neterror?e=connectionFailure in TRANSIENT_FAILURE_MARKERS

Author: stktyagi

.github/actions/bot-ci-failure/analyze_failure.py

@@ -31,6 +31,7 @@
     "Posting coverage data to https://coveralls.io",
     "OperationalError: database is locked",
     "ERROR: Could not install packages due to an OSError",
+    "about:neterror?e=connectionFailure",
 )
 
 

.github/actions/bot-ci-failure/test_analyze_failure.py

@@ -197,6 +197,13 @@ def test_detects_connection_refused(self):
             )
         )
 
+    def test_detects_about_neterror_connection_failure(self):
+        self.assertTrue(
+            _is_transient_failure(
+                "Selenium loaded about:neterror?e=connectionFailure during test run"
+            )
+        )
+
     def test_normal_test_failure_not_transient(self):
         self.assertFalse(_is_transient_failure("FAIL: test_login"))