Purpose: Test if navigating to a non-responsive port (81) causes the omnibox to update instantly while leaving the active, spoofed DOM fully interactable. Bug Class: UI Desynchronization / Navigation Race condition / TOCTOU.
Steps to reproduce:
1. Tap "Pay $299.00" below.
2. Watch the URL bar update to https://paypal.com.
3. Notice the page below remains perfectly visible and intact. Try typing in the inputs!