Intercept and modify HTTP requests and responses using Selenium 4 WebDriver BiDi addIntercept

Steps

1. Instantiate a WebDriver with BiDi enabled: options = ChromeOptions(); driver = webdriver.Chrome(options=options)
2. Access the BiDi network module: async with driver.bidi_connection() as conn: network = Network(conn.session)
3. Add an intercept for a URL pattern and phase: await network.add_intercept(phases=[InterceptPhase.BEFORE_REQUEST], url_patterns=[UrlPattern.string('https://api.example.com/*')])
4. Subscribe to the before_request_sent event and call await network.continue_request(request_id=event.request_id, headers=[Header(name='X-Test', value='1')]) to inject headers
5. To block a request, call await network.fail_request(request_id=event.request_id) instead of continuing
6. Remove intercepts when done with await network.remove_intercept(intercept_id) to restore normal network behaviour