fix(curriculum) : stringify uncloneable search params in Basic Node Post Challenge by a2937 · Pull Request #66132

fix(curriculum) : stringify uncloneable search params in Basic Node Post Challenge by a2937 · Pull Request #66132 · freeCodeCamp/freeCodeCamp

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I have read and followed the contribution guidelines.
I have read and followed the how to open a pull request guide.
My pull request targets the main branch of freeCodeCamp.
I have tested these changes either locally on my machine, or GitHub Codespaces.

Closes #XXXXX

This should fix the long standing issue of campers not being able to pass the basic node Express challenge due to the URLSearchParams object not being able to be cloned.

The reason why it can't be cloned for the record is because it is a object with methods; and the postMessage function won't like that.