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When a Cypress test fails to stub network traffic, the culprit is often a timing, pattern, or configuration mismatch. This guide walks you through the most frequent problems, how to detect them, and what to do next.
Use Chrome DevTools Protocol to intercept and rewrite HTTP requests programmatically, inject auth tokens, block trackers, and simulate failures without browser extensions.
Stop relying on unstable CSS selectors. Learn how to use Puppeteer's network interception and waitForResponse to capture raw JSON data directly from APIs for more robust automation.
Cypress runs tests inside a real browser and proxies network traffic between the test runner process and the application under test. The integration boundary is relevant when verification of UI state depends on network interception via cy.intercept. The goal is to understand how stubbing, delaying, or asserting on network calls interacts with Cypress asserti
Selenium BiDi Protocol Configuration Goal: enable real‑time network request interception using the BiDi protocol while avoiding the legacy polling model. The browser must support BiDi (e.g., Chrome 115+). Selenium must be instantiated with the appropriate capability to expose the BiDi endpoint. Mixing legacy WebDriver commands with BiDi listeners can lead to
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