Hallo Sherrisa,

the response from the server does not depend on whether you make a request via XMLHttpRequest or the Fetch API, it should be the same in both cases.

I have just tested this endpoint to retrieve the Ab minor chord with a fetch request: https://piano-chords.p.rapidapi.com/chords/ab/m
The notes array in the response was as expected: [‘Ab’, ‘B’, ‘Eb’]

Can you be more specific about which endpoint you’re trying to reach, and about the expected vs. actual response?

Best regards,
Maren@jsdisco