How can I use source maps to debug minified JavaScript errors caught by `window.onerror`?

By: USER7143
25 Agustus 2025 Support 5 minutes
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Grade: Education Subject: Support
How can I use source maps to debug minified JavaScript errors caught by `window.onerror`?
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Source maps are crucial for debugging minified JavaScript. When a JavaScript error occurs in minified code and is caught by `window.onerror`, the stack trace will refer to the minified code. Configure your error logging service or your `window.onerror` handler to upload the source map file alongside the minified JavaScript. The service or handler can then use the source map to translate the minified stack trace into the original, unminified code, making debugging much easier.
Answered on 25 Agustus 2025

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