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Developer tools · #karma
Stop CI failures caused by missing display servers. Learn how to configure Karma with ChromeHeadless and Puppeteer for reliable, headless JavaScript unit testing.
Learn how to configure Karma to switch between headed Chrome for local debugging and ChromeHeadless for CI pipelines using dynamic environment variables.
Learn how to configure Karma to run unit tests in a headless Chrome instance using karma‑chrome‑launcher, including installation, configuration, flags, and trade‑offs for CI.
Learn how to configure Karma's singleRun and autoWatch settings to optimize for both local developer productivity and stable CI/CD pipeline execution.
When integrating Karma with the JUnit reporter in a CI/CD pipeline, the volume of XML-generated metadata often leads to notification fatigue. The goal is to configure the environment so that only high-priority failures trigger alerts, while skipped tests or minor warnings do not clutter the build logs. Currently, using failOnTests: false prevents the CI proc