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Intercept and mock GraphQL requests by operation name, x-operation header, or URL pattern Lightweight Chrome extension to intercept GraphQL requests and return mock responses without hitting your backend APIs. Perfect for developers and QA teams testing UI components independently: 🎯 KEY FEATURES: - Match GraphQL requests by x-operation header, operationName, or URL - Create, edit, and toggle rules in seconds via popup UI - Mock success scenarios, errors, and edge cases - View request logs with operation details - Tab-specific rules (pin to current tab only) - Environment/host scoping (test on staging vs production separately) - Patch mode: change values in real responses without mocking - Load example scenarios for common operations ⚡ USE CASES: ✓ Test error handling without breaking your backend ✓ Test UI loading states with custom delays ✓ Test unavailable features/products ✓ Develop UI components independently from API ✓ Load performance testing with slow responses ✓ Validate edge cases and error scenarios 🛠️ HOW IT WORKS: 1. Click the extension icon 2. Create a rule (choose operation name/header, mock response) 3. Refresh your page 4. Extension intercepts matching requests and returns your mock data 📋 SUPPORTED OPERATIONS: Works with any GraphQL operation—Product queries, mutations, subscriptions, etc. Built with TypeScript • No backend required • Fully offline • Open source Perfect for RH (Restoration Hardware) development workflows and any team using GraphQL.