Two real-world debugging stories where cURL proved invaluable. First, using `curl -ILs` to follow URL redirects and inspect headers helped identify a missing URL parameter in a shortened Ad URL without spinning up a full service stack. Second, using cURL to isolate a Node.js/axios issue where API responses were truncated 50% of the time — cURL confirmed the API itself was fine, pointing the problem to axios connection reuse being disabled by default. Enabling connection reuse resolved the issue entirely.
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