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That's true. Although it will make the URL longer, I have decided to use encodeURIComponent to escape characters and avoid potential bugs.

Thank you for your comment! I plan to add it in the next implementation.

Thank you for your comment! I appreciate your constructive advice. I will take it into consideration for the next implementation.

I didn't test it with curl because I was assuming it would be used on the frontend, but as afn mentioned, I think it should work correctly if you add -g as shown below: curl -g -v 'https://echoserver.dev/server?query={"headers":[["foo","bar"...}'

Also, I am using render.com for hosting, and render.com uses Cloudflare internally, so it seems that related headers are also included. However, I believe this should not be a problem for testing purposes.

I'm sorry. English is not my native language, and I lack confidence in it, so I used ChatGPT.

Hi everyone, I am S, a freelance web developer.

I needed to use a JSON to CSV Converter in graduate school, but there was no intuitive converter application. That's why I developed this app.