Add non-ASCII byte status fallback regression coverage

Co-authored-by: Shri Sukhani <shrisukhani@users.noreply.github.com>

Author: cursoragent

tests/test_polling.py

@@ -480,6 +480,34 @@ async def get_status() -> str:
     asyncio.run(run())
 
 
+def test_poll_until_terminal_status_async_handles_non_ascii_byte_status_codes_as_retryable():
+    async def run() -> None:
+        attempts = {"count": 0}
+
+        async def get_status() -> str:
+            attempts["count"] += 1
+            if attempts["count"] < 3:
+                raise HyperbrowserError(
+                    "non-ascii byte status code",
+                    status_code=b"\xff",  # type: ignore[arg-type]
+                )
+            return "completed"
+
+        status = await poll_until_terminal_status_async(
+            operation_name="async poll non-ascii byte status retries",
+            get_status=get_status,
+            is_terminal_status=lambda value: value == "completed",
+            poll_interval_seconds=0.0001,
+            max_wait_seconds=1.0,
+            max_status_failures=5,
+        )
+
+        assert status == "completed"
+        assert attempts["count"] == 3
+
+    asyncio.run(run())
+
+
 def test_poll_until_terminal_status_retries_server_errors():
     attempts = {"count": 0}
 
@@ -927,6 +955,29 @@ def operation() -> str:
     assert attempts["count"] == 3
 
 
+def test_retry_operation_handles_non_ascii_byte_status_codes_as_retryable():
+    attempts = {"count": 0}
+
+    def operation() -> str:
+        attempts["count"] += 1
+        if attempts["count"] < 3:
+            raise HyperbrowserError(
+                "non-ascii byte status code",
+                status_code=b"\xfe",  # type: ignore[arg-type]
+            )
+        return "ok"
+
+    result = retry_operation(
+        operation_name="sync retry non-ascii byte status code",
+        operation=operation,
+        max_attempts=5,
+        retry_delay_seconds=0.0001,
+    )
+
+    assert result == "ok"
+    assert attempts["count"] == 3
+
+
 def test_retry_operation_rejects_awaitable_operation_result():
     async def async_operation() -> str:
         return "ok"