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Remove query strings before sending request to origin

Remove certain query strings from a request before passing to the origin.

export default {
async fetch(request) {
// Define the query strings you want to remove
const queryStringsToRemove = ["utm_source", "utm_medium", "utm_campaign"];
// Get the URL from the request
const url = new URL(request.url);
// Remove the specified query strings
queryStringsToRemove.forEach((query) => {
url.searchParams.delete(query);
});
// Create a new request with the modified URL
const modifiedRequest = new Request(url, request);
// Pass the modified request to the origin
const response = await fetch(modifiedRequest);
return response;
},
};