i'm trying to fetch some leetcode stats using leetcode's graphql schema. when i enter the query in the browser, it gives me a response, but it's not responding to me when i use axios. here's the query i enter in the browser: https://leetcode.com/graphql?query=query { questionSubmissionList( offset: 0, limit: 20, questionSlug: "two-sum" ) { lastKey hasNext submissions { id title titleSlug status statusDisplay lang langName runtime timestamp url isPending memory } } } and here's what i have in my code: let url = `https://leetcode.com/graphql`; const fetchSubmissionList = async (questionSlug) => { let query = ` query questionSubmissionList( offset: 0, limit: 20, questionSlug: $questionSlug ) { lastKey hasNext submissi