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hchoang's blog

Month: March 2026

By Cat Hoang March 26, 2026

Why Google, Facebook, and Canva Inject “Junk Characters” into API Responses

If you have ever poked around the Network tab in your browser’s Developer Tools while using services from tech giants like Google, Meta (Messenger), or Canva, you might have stumbled upon something bizarre. Right at the beginning of their JSON API responses, they often insert a few strange, invalid characters (like )]}’,), or even an […]

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  • Why Google, Facebook, and Canva Inject “Junk Characters” into API Responses
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