Blocking Proxy for WebDriver Tests

Blocking Proxy is a specialized network proxy designed to enhance WebDriver-based test suites, particularly for rich client applications. It operates by intercepting WebDriver commands between the test runner and the Selenium Server, allowing for the injection of custom logic. Its primary utility, especially for applications built with Angular, is to automatically pause WebDriver commands until Angular's change detection cycles are finished, thereby significantly reducing test flakiness caused by asynchronous UI updates. The current stable version is 1.0.1, last published in 2017. While it originated within the Angular ecosystem, its development appears to be in maintenance mode, with no significant recent updates. Key differentiators include its language-agnostic network-level interaction, features like 'Wait for Angular,' highlight delay for visual debugging, and detailed WebDriver command logging. It is intended to be run as a separate process alongside a Selenium server, not as an embedded library within the test runner itself.