# Configuration Now that the basic onboarding is complete, let's review one other field in the form. ### Enable browser pixel? This option is **enabled by default and cannot be disabled** for Universal Ads. EdgeTag only supports browser-based tracking for Universal Ads. For headless applications, you will need to add our NPM package to your project to allow support—more on [NPM packages](/implementation/headless/browser-packages.md). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.edgetag.io/channels/universal-ads/configuration.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.